8444 + Interview Questions in Primary School in Physics Page 66 InterviewSolution

3251.	What is the sure test of magnetism ?
Answer» Explanation: Repulsion Repulsion is the sure test for magnetism because it OCCURS only when two like poles of a magnet exist while the ATTRACTION phenomenon can occur between two UNLIKE poles of a magnet and also between a magnet and a magnetic MATERIAL means if there are two magnets they will ATTRACT each other and suppose if one material ...

3251.

What is the sure test of magnetism ?

Answer»

Explanation:

Repulsion

Repulsion is the sure test for magnetism because it OCCURS only when two like poles of a magnet exist while the ATTRACTION phenomenon can occur between two UNLIKE poles of a magnet and also between a magnet and a magnetic MATERIAL means if there are two magnets they will ATTRACT each other and suppose if one material ...

Discussion

3252.	What is the acceleration of a car which started from rest and acwuired a velocity of 40m/s in 8s
Answer» ANSWER: a=v-u/t =40-0/8 5m/s is the answer

3252.

What is the acceleration of a car which started from rest and acwuired a velocity of 40m/s in 8s

Answer»

ANSWER:

a=v-u/t

=40-0/8

5m/s is the answer

Discussion

3253.	If incident ray is falling on the contact lens through focus so what will be the path of refracted Ray?❌Nᴏ SᴘᴀM❌✅Rᴇᴠᴇʟʟᴀɴᴛ Aɴᴀᴡᴇʀs ᴏɴʟʏ✅❌Nᴏ ɪʀʀᴇᴠᴇʟʟᴀɴᴛ Aɴsᴡᴇʀs❌❌Dᴏɴ'ᴛ Tʀʏ ᴛᴏ Cᴏᴘʏ ғʀᴏᴍ ɢ.ᴏᴏɢʟᴇ❌
Answer» Answer: When an INCIDENT ray FALLS on the contact lens through focus, the path of the REFRACTED ray will be parallel to the PRINCIPAL axis.

3253.

If incident ray is falling on the contact lens through focus so what will be the path of refracted Ray?❌Nᴏ SᴘᴀM❌✅Rᴇᴠᴇʟʟᴀɴᴛ Aɴᴀᴡᴇʀs ᴏɴʟʏ✅❌Nᴏ ɪʀʀᴇᴠᴇʟʟᴀɴᴛ Aɴsᴡᴇʀs❌❌Dᴏɴ'ᴛ Tʀʏ ᴛᴏ Cᴏᴘʏ ғʀᴏᴍ ɢ.ᴏᴏɢʟᴇ❌

Answer»

Answer:

When an INCIDENT ray FALLS on the contact lens through focus, the path of the REFRACTED ray will be parallel to the PRINCIPAL axis.

Discussion

3254.	In a 3600m race around a circular track of length 400m, the faster runner anthe start of the race. All the runners maintain uniform speed throughout trace. If the faster runner runs at thrice the speed of the slowest runner,ththe time taken by the faster runner to finish the race is
Answer» ANSWER: what question you ASK to all

3254.

In a 3600m race around a circular track of length 400m, the faster runner anthe start of the race. All the runners maintain uniform speed throughout trace. If the faster runner runs at thrice the speed of the slowest runner,ththe time taken by the faster runner to finish the race is

Answer»

ANSWER:

what question you ASK to all

Discussion

3255.	It's ok aavi isme lucky hone ki batt nhi app munhe ak bari puri photo bhej do please
Answer» ANSWER: *The increase in percentage of production in the THIRD year as compared to the second is* *The increase in percentage of production in the third year as compared to the second is(a) 10* *The increase in percentage of production in the third year as compared to the second is(a) 10(b) 20* *The increase in percentage of production in the third year as compared to the second is(a) 10(b) 20(c) 25* *The increase in percentage of production in the third year as compared to the second is(a) 10(b) 20(c) 25(d) 50* *The increase in percentage of production in the third year as compared to the second is(a) 10(b) 20(c) 25(d) 50the 5TH year what as the*

3255.

It's ok aavi isme lucky hone ki batt nhi app munhe ak bari puri photo bhej do please

Answer»

ANSWER:

The increase in percentage of production in the THIRD year as compared to the second is

The increase in percentage of production in the third year as compared to the second is(a) 10

The increase in percentage of production in the third year as compared to the second is(a) 10(b) 20

The increase in percentage of production in the third year as compared to the second is(a) 10(b) 20(c) 25

The increase in percentage of production in the third year as compared to the second is(a) 10(b) 20(c) 25(d) 50

The increase in percentage of production in the third year as compared to the second is(a) 10(b) 20(c) 25(d) 50the 5TH year what as the

Discussion

3256.	सरल लोलक का आवर्तकाल का सूत्र किसी छात्र द्वारा टीम बराबर टू बाय रोड में जो बैठे हैं बताया जाता है कि में संतुलन द्वारा दर्शाइए कि यह संबंधित सही है या गलत
Answer» Explanation: 9931071812 call me ys4s7 RYE

3256.

सरल लोलक का आवर्तकाल का सूत्र किसी छात्र द्वारा टीम बराबर टू बाय रोड में जो बैठे हैं बताया जाता है कि में संतुलन द्वारा दर्शाइए कि यह संबंधित सही है या गलत

Answer»

Explanation:

9931071812

call me

ys4s7 RYE

Discussion

3257.	On a sunny day; your mother spreads washed clothes on a rope for drying. Different colored clothes are spread for drying. Is it possible to see different colored shadow of the clothes? Give reason.
Answer» ANSWER: No, it not possible to SEE the DIFFERENT colored shadows of the clothes. Explanation: The shadow will be independent of the OBJECT's color and will be black as LONG as the object is opaque.

3257.

On a sunny day; your mother spreads washed clothes on a rope for drying. Different colored clothes are spread for drying. Is it possible to see different colored shadow of the clothes? Give reason.

Answer»

ANSWER:

No, it not possible to SEE the DIFFERENT colored shadows of the clothes.

Explanation:

The shadow will be independent of the OBJECT's color and will be black as LONG as the object is opaque.

Discussion

3258.	What are the directive and attractive properties of magnet
Answer» Answer: They are: Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel. REPULSIVE Properties – Like MAGNETIC poles repel each other and UNLIKE magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction. Explanation: MARK as brainliest

3258.

What are the directive and attractive properties of magnet

Answer»

Answer:

They are: Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel. REPULSIVE Properties – Like MAGNETIC poles repel each other and UNLIKE magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction.

Explanation:

MARK as brainliest

Discussion

3259.	Can anyone answer this
Answer» Answer: I) 1. Vaccine 2. LIVING being 3. antibodies 4. antibodies II) A. Potatoes are grown by vegetative PROPAGATION. B. Binary fission Plz MARK it BRAINLIEST

3259.

Can anyone answer this

Answer»

Answer:

I) 1. Vaccine

2. LIVING being

3. antibodies

4. antibodies

II) A. Potatoes are grown by vegetative PROPAGATION.

B. Binary fission

Plz MARK it BRAINLIEST

Discussion

3260.	What is this picture?
Answer» Answer: I think it is a house. u are PRETTY GOOD in DRAWING

3260.

What is this picture?

Answer»

Answer:

I think it is a house. u are PRETTY GOOD in DRAWING

Discussion

3261.	A force of 12N is acting on a wall. What is the amount of work done.
Answer» ANSWER: the answer of this QUESTION is 6N

3261.

A force of 12N is acting on a wall. What is the amount of work done.

Answer»

ANSWER:

the answer of this QUESTION is 6N

Discussion

3262.	2.A student investigated the reaction of aqueous potassium hydroxide with two differentacids, acid C and acid D.1313-3-1-101Two experiments were carried out.Experiment 1By using a measuring cylinder, 40 cm' of aqueous potassium hydroxide was poured into aconical flask and the initial temperature of the solution was measured.A burette was filled with acid C up to the 0.0 cm' mark.10 cm of acid C was added to the potassium hydroxide in the flask. The temperature of themixture was measued?
Answer» ANSWER: Good Night BRO God Bless you Nice DREAM byyy brother Kal Explanation: jajsnsbshsjbdsnnsmaks

3262.

2.A student investigated the reaction of aqueous potassium hydroxide with two differentacids, acid C and acid D.1313-3-1-101Two experiments were carried out.Experiment 1By using a measuring cylinder, 40 cm' of aqueous potassium hydroxide was poured into aconical flask and the initial temperature of the solution was measured.A burette was filled with acid C up to the 0.0 cm' mark.10 cm of acid C was added to the potassium hydroxide in the flask. The temperature of themixture was measued?

Answer»

ANSWER:

Good Night BRO God Bless you Nice DREAM byyy brother Kal

Explanation:

jajsnsbshsjbdsnnsmaks

Discussion

3263.	What are the properties of a ma3. How can we make a magnet?HOTS (Higher Order Thinking Skill
Answer» Answer: We make magnets by EXPOSING ferromagnetic metals like IRON and nickel to magnetic fields.Moreover, when we heat these metals to a certain temperature, they GET permanently magnetized. Besides, it's also POSSIBLE to temporarily MAGNETIZE them by using a variety of methods that you can try safely at home.

3263.

What are the properties of a ma3. How can we make a magnet?HOTS (Higher Order Thinking Skill

Answer»

Answer:

We make magnets by EXPOSING ferromagnetic metals like IRON and nickel to magnetic fields.Moreover, when we heat these metals to a certain temperature, they GET permanently magnetized. Besides, it's also POSSIBLE to temporarily MAGNETIZE them by using a variety of methods that you can try safely at home.

Discussion

3264.	How is lightning a natural source of light?Please help..
Answer» Natural LIGHT sources include the Sun and stars. ARTIFICIAL light sources include lamp posts and televisions. Without light sources we could not see the WORLD around us, however not every object we can see is a light source. Many objects SIMPLY reflect light from a light source. I hope it help you...

3264.

How is lightning a natural source of light?Please help..

Answer»

Natural LIGHT sources include the Sun and stars. ARTIFICIAL light sources include lamp posts and televisions. Without light sources we could not see the WORLD around us, however not every object we can see is a light source. Many objects SIMPLY reflect light from a light source.

I hope it help you...

Discussion

3265.	Write the difference between self and forced demagnetization
Answer» Answer: Induction of MAGNETIC fields in and around ferromagnetic MATERIALS and COMPONENTS which have the appropriate intensity and suitable directions for magnetic particle inspection involves techniques which demand skill and understanding both in design and actual use. After taking such trouble to magnetize material and components for magnetic particle inspection it is frequently, but not always necessary to reduce the remaining magnetic field as much as possible. This can prove to be a more difficult problem than that of magnetizing materials and components. The difficulty may arise from the magnetic characteristics of the material, or a component may be made up of SEVERAL materials having quite different magnetic characteristics. A common example is of a large component made of steel of high coercivity and retentivity having one or more bolts in it which have much higher relative permeability. Another common source of difficulty in demagnetization is the equipment available. It is not uncommon to find operators working under great difficulty because they have only 50 or 60 Hz alternating current DEMAGNETIZING equipment and the magnetic field was induced by use of full-wave or half-wave rectified current.

3265.

Write the difference between self and forced demagnetization

Answer»

Answer:

Induction of MAGNETIC fields in and around ferromagnetic MATERIALS and COMPONENTS which have the appropriate intensity and suitable directions for magnetic particle inspection involves techniques which demand skill and understanding both in design and actual use. After taking such trouble to magnetize material and components for magnetic particle inspection it is frequently, but not always necessary to reduce the remaining magnetic field as much as possible. This can prove to be a more difficult problem than that of magnetizing materials and components. The difficulty may arise from the magnetic characteristics of the material, or a component may be made up of SEVERAL materials having quite different magnetic characteristics. A common example is of a large component made of steel of high coercivity and retentivity having one or more bolts in it which have much higher relative permeability. Another common source of difficulty in demagnetization is the equipment available. It is not uncommon to find operators working under great difficulty because they have only 50 or 60 Hz alternating current DEMAGNETIZING equipment and the magnetic field was induced by use of full-wave or half-wave rectified current.

Discussion

3266.	What are the differences between the shadow of a flower and its image formed by a plane mirror?
Answer» $\huge {\bold {\underbrace \orange{ answer:- }}}$ Your shadow will be at its longest at dawn and dusk, WHEREAS it will be at its SHORTEST at NOON. An image in a PLANE mirror doesn't change in size at all; it is always of the same size as that of the object.

3266.

What are the differences between the shadow of a flower and its image formed by a plane mirror?

Answer»

$\huge {\bold {\underbrace \orange{ answer:- }}}$

Your shadow will be at its longest at dawn and dusk, WHEREAS it will be at its SHORTEST at NOON. An image in a PLANE mirror doesn't change in size at all; it is always of the same size as that of the object.

Discussion

3267.	Draw a diagram to show that white light can be split up into different colours. Draw another diagram to show how the colours can be combined to give the effect of white light
Answer» THEREFORE, these are the PICTURES

Discussion

3268.	DEVESH BHAI MAIN LADKI NHI BADAL RHAMERI FRIEND HSI ARAINASHE IS KUTIYA..USKE LIYE MERI MIDDLE FINGER...
Answer» ANSWER: DEVESH YEH KYA hahahhahahah

3268.

DEVESH BHAI MAIN LADKI NHI BADAL RHAMERI FRIEND HSI ARAINASHE IS KUTIYA..USKE LIYE MERI MIDDLE FINGER...

Answer»

ANSWER:

DEVESH YEH KYA hahahhahahah

Discussion

3269.	Cm³ and cm-³ difference
Answer» As you probably NOTICED in the charts, a cubic centimeter is equal to a MILLILITER. So if we have 10 cm^3, we also have 10 MILLILITERS.

3269.

Cm³ and cm-³ difference

Answer»

As you probably NOTICED in the charts, a cubic centimeter is equal to a MILLILITER. So if we have 10 cm^3, we also have 10 MILLILITERS.

Discussion

3270.	A block of wood with dimensions 0.45×0.11×0.23m is floating along a river with the broadest face at the lower side. If it is submerged to a height of 0.125m then what will be he mass of this wooden piece?
Answer» Answer: 1 day AGO — If it is submerged to a height of 0.125m then what will be he mass of ... is floating ALONG a RIVER with the broadest face at the lower SIDE. If it ..

3270.

A block of wood with dimensions 0.45×0.11×0.23m is floating along a river with the broadest face at the lower side. If it is submerged to a height of 0.125m then what will be he mass of this wooden piece?

Answer»

Answer:

1 day AGO — If it is submerged to a height of 0.125m then what will be he mass of ... is floating ALONG a RIVER with the broadest face at the lower SIDE. If it ..

Discussion

3271.	how can you show that repulsion is this sure test of magnetism.Plz don't answer from what goggle says
Answer» ANSWER: Repulsion is the SURE test for MAGNETISM because it OCCURS only when two like poles of a magnet exist while the attraction phenomenon can occur between two unlike poles of a magnet and also between a magnet and a magnetic material means if there are two MAGNETS they will attract each other and suppose if one material

3271.

how can you show that repulsion is this sure test of magnetism.Plz don't answer from what goggle says

Answer»

ANSWER:

Repulsion is the SURE test for MAGNETISM because it OCCURS only when two like poles of a magnet exist while the attraction phenomenon can occur between two unlike poles of a magnet and also between a magnet and a magnetic material means if there are two MAGNETS they will attract each other and suppose if one material

Discussion

3272.	Hey guys how it is tell me
Answer» ANSWER: NICE DEAR But if you try more you do much better than this..

3272.

Hey guys how it is tell me

Answer»

ANSWER:

NICE DEAR

But if you try more you do much better than this..

Discussion

3273.	2. What is meant by adaptations?
Answer» ANSWER: a PLAY or FILM that is BASED on a NOVEL, etc. किसी उपन्‍यास आदि पर आधारित कोई नाटक या फ़िल्‍म; रूपांतर

3273.

2. What is meant by adaptations?

Answer»

ANSWER:

a PLAY or FILM that is BASED on a NOVEL, etc.

किसी उपन्‍यास आदि पर आधारित कोई नाटक या फ़िल्‍म; रूपांतर

Discussion

3274.	Which is your favourit band
Answer» Answer: A favorite BAND is your favorite band because of something in their sound. This REASON is the most obvious to most people. The band has a GREAT sound or something ORIGINAL.

3274.

Which is your favourit band

Answer»

Answer:

A favorite BAND is your favorite band because of something in their sound. This REASON is the most obvious to most people. The band has a GREAT sound or something ORIGINAL.

Discussion

3275.	On 5.2)] Complete the table.S.No.MRR2F=GMm/R21832642962G
Answer» Answer: 6484you you dkcj J khvdwvbn

3275.

On 5.2)] Complete the table.S.No.MRR2F=GMm/R21832642962G

Answer»

Answer:

6484you you dkcj J khvdwvbn

Discussion

3276.	Can anyone answer to these questions fast very urgent
Answer» ANSWER: Brick B will exert more pressure than brick A as pressure is more then area of surface of contact is low In CASE of brick B, the area touching to the table is LESS than A so pressure is exerted HOPE IT WILL HELP YOU MARK ME BRAINILIST BY MARKING ME U WILL ALSO GET 3 POINTS

3276.

Can anyone answer to these questions fast very urgent

Answer»

ANSWER:

Brick B will exert more pressure than brick A as pressure is more then area of surface of contact is low

In CASE of brick B, the area touching to the table is LESS than A so pressure is exerted

HOPE IT WILL HELP YOU

MARK ME BRAINILIST

BY MARKING ME U WILL ALSO GET 3 POINTS

Discussion

3277.	What is the structure of atom ?
Answer» Answer: Atoms consist of three basic particles: protons, electrons, and NEUTRONS. The NUCLEUS (center) of the atom CONTAINS the protons (positively charged) and the neutrons (no CHARGE). The outermost regions of the atom are called electron shells and CONTAIN the electrons (negatively charged).

3277.

What is the structure of atom ?

Answer»

Answer:

Atoms consist of three basic particles: protons, electrons, and NEUTRONS. The NUCLEUS (center) of the atom CONTAINS the protons (positively charged) and the neutrons (no CHARGE). The outermost regions of the atom are called electron shells and CONTAIN the electrons (negatively charged).

Discussion

3278.	Forward bias and reverse bias observation knee voltage and breakdown voltage
Answer» Explanation: A PN junction diode is a non-linear component and it consists of two JUNCTIONS NAMELY P-junction & N-junction where the MAJORITY and minority charge carriers are present like electrons and holes. It is also known as a semiconductor diode or PN junction diode. This diode includes two terminals namely anode and cathode, where a p-type semiconductor is an anode (positive voltage) and N-type SEMICONDUCTORS are cathode (negative voltage). The flow of current in the diode is in one direction only because it opposes in another direction with HIGH resistance. This article gives an overview of what is the knee voltage of a diode and its characteristics. What is Knee Voltage? In the forward characteristics of a diode once the voltage is applied then the junction starts increasing rapidly. It is known as knee voltage and an alternate name of this is cut in voltage.

3278.

Forward bias and reverse bias observation knee voltage and breakdown voltage

Answer»

Explanation:

A PN junction diode is a non-linear component and it consists of two JUNCTIONS NAMELY P-junction & N-junction where the MAJORITY and minority charge carriers are present like electrons and holes. It is also known as a semiconductor diode or PN junction diode. This diode includes two terminals namely anode and cathode, where a p-type semiconductor is an anode (positive voltage) and N-type SEMICONDUCTORS are cathode (negative voltage). The flow of current in the diode is in one direction only because it opposes in another direction with HIGH resistance. This article gives an overview of what is the knee voltage of a diode and its characteristics.

What is Knee Voltage?

In the forward characteristics of a diode once the voltage is applied then the junction starts increasing rapidly. It is known as knee voltage and an alternate name of this is cut in voltage.

Discussion

3279.	What is the value of the unknown angle (theta) in the given diagram? With steps ..
Answer» THEREFORE, the VALUE of theta is 60° Hope this helps you. Mark me as brainleist. Thank you for your question it had HELPED me to think CORRECTLY

3279.

What is the value of the unknown angle (theta) in the given diagram? With steps ..

Answer»

THEREFORE, the VALUE of theta is 60°

Hope this helps you.

Mark me as brainleist.

Thank you for your question it had HELPED me to think CORRECTLY

Discussion

3280.	balance the following chemical equation after writing the symbolic representation. (a)calcium hydroxide(s)+nitric acid (aq)---->water (1)+calcium nitrate(aq) (b) magnesium(s)+lodine(s)--->magnesium lodide(s)
Answer» ANSWER: hope it will HELP you.. Explanation: plz MARK me as Brilliant

3280.

balance the following chemical equation after writing the symbolic representation. (a)calcium hydroxide(s)+nitric acid (aq)---->water (1)+calcium nitrate(aq) (b) magnesium(s)+lodine(s)--->magnesium lodide(s)

Answer»

ANSWER:

hope it will HELP you..

Explanation:

plz MARK me as Brilliant

Discussion

3281.	Draw the model of an electrical circuit with a home-made switch incorporated in it.Pls tell me which will be the answer from the given picture
Answer» WITHOUT the SWITCH is on how can there is flow of current. so, with switch off any CIRCUIT will not have flow of current THEREFORE, the electric appliance in the circuit will not WORK

3281.

Draw the model of an electrical circuit with a home-made switch incorporated in it.Pls tell me which will be the answer from the given picture

Answer»

WITHOUT the SWITCH is on how can there is flow of current. so, with switch off any CIRCUIT will not have flow of current

THEREFORE, the electric appliance in the circuit will not WORK

Discussion

3282.	Draw the model of an electrical circuit with a home-made switch incorporated in it.Pls tell me what will be the answer from the given picture
Answer» 'oljk'ghlk'py jpYpi[yiyiyyy

3282.

Draw the model of an electrical circuit with a home-made switch incorporated in it.Pls tell me what will be the answer from the given picture

Answer»

'oljk'ghlk'py

jpYpi[yiyiyyy

Discussion

3283.	What gives galaxies different shapes
Answer» Explanation: The centrifugal force of the spinning gas cloud along with the gravitational PULL within the clouds WORK together to GIVE a galaxy its shape. All GALAXIES began with an elliptical shape, which is mostly a result of the centrifugal force of the spinning gas cloud.

3283.

What gives galaxies different shapes

Answer»

Explanation:

The centrifugal force of the spinning gas cloud along with the gravitational PULL within the clouds WORK together to GIVE a galaxy its shape. All GALAXIES began with an elliptical shape, which is mostly a result of the centrifugal force of the spinning gas cloud.

Discussion

3284.	Derive the equation of motion and explain the symbols used in them ?
Answer» Answer: The THREE equations of motion v = u + at; s = ut + (1/2) AT2 and v2 = u2 + 2as can be DERIVED with the help of graphs as described below. CONSIDER the velocity – time graph of a body shown in the below Figure. Velocity – Time graph to derive the equations of motion Explanation: HOPE it helps

3284.

Derive the equation of motion and explain the symbols used in them ?

Answer»

Answer:

The THREE equations of motion v = u + at; s = ut + (1/2) AT2 and v2 = u2 + 2as can be DERIVED with the help of graphs as described below. CONSIDER the velocity – time graph of a body shown in the below Figure. Velocity – Time graph to derive the equations of motion

Explanation:

HOPE it helps

Discussion

3285.	Inclined plane is a--a lever of first order,third order or simple machine
Answer» ANSWER: lunduskai 00920 for the FIRST TIME

3285.

Inclined plane is a--a lever of first order,third order or simple machine

Answer»

ANSWER:

lunduskai 00920 for the FIRST TIME

Discussion

3286.	WHAT IS THE ANS OF DEFINE THE TERM METER ? NAME ONE MULTIPLE ANDTWO SUBMULTIPLE OF METER ?
Answer» Answer: To cover a LARGER distance we USE km(kilometre) , hm (hectometre) , and dac(decametre). These are CALLED the multiples of Metre. For the distance is SMALLER , we use Dm (decimetre , cm(centimetre) and mm (MILLIMETRE) . These are called the submultiples of Metre.

3286.

WHAT IS THE ANS OF DEFINE THE TERM METER ? NAME ONE MULTIPLE ANDTWO SUBMULTIPLE OF METER ?

Answer»

Answer:

To cover a LARGER distance we USE km(kilometre) , hm (hectometre) , and dac(decametre). These are CALLED the multiples of Metre. For the distance is SMALLER , we use Dm (decimetre , cm(centimetre) and mm (MILLIMETRE) . These are called the submultiples of Metre.

Discussion

3287.	निस्यंदन छानना व निष्पादन ओशना में क्या अंतर है
Answer» ANSWER: I didn't GET it . can you EXPLAIN in ENGLISH

3287.

निस्यंदन छानना व निष्पादन ओशना में क्या अंतर है

Answer»

ANSWER:

I didn't GET it . can you EXPLAIN in ENGLISH

Discussion

3288.	A block A of mass 2 kg starts slipping down the inclined plane of inclination37° from a point 4.8 m away from the spring of constant k=1000 N/m . The coefficient of kinetic friction between the block and the inclined plane is 0.5. If the maximum compression in the spring is x_max , then find the value of 10x_max , in metre
Answer» Topic :- Mechanics Given :- A block A of MASS 2 kg starts slipping down the inclined plane of inclination 37° from a point 4.8 m away from the spring of CONSTANT k = 1000 N/m. The coefficient of kinetic friction between the block and the inclined plane is 0.5. Formula to be Used :- $<klux>WORK</klux>\:done\:by\:spring=\dfrac{1}{2}kx^2$ x is maximum compression in spring. Frictional force when a block slips down = $\mu mgcos\theta$ Force with which block slips down = $mgsin\theta$ $Work\:Done=Force \times Displacement$ Solution :- It is given that, Mass of block, m = 2 kg Inclination of plane = 37° DISTANCE traversed by block = Distance between block and spring + Maximum Compression in spring Distance traversed by block = ( 4.8 + x ) metres Spring Constant, k = 1000 N/m Kinetic friction between block and plane = 0.5 Now, calculate work done by block, Work done = Force × Displacement $Work\:done = ( mgsin\theta - \mu mgcos\theta) \times Displacement$ $Work\:done =\left ( (2)(10)sin37^{\circ} -\dfrac{1}{2}(2)(10)cos37^{\circ} \right ) \times (4.8+x)$ $Work\:done=\left (20 \times \dfrac{3}{5} - \dfrac{1}{2} \times 20 \times \dfrac{4}{5} \right )\times (4.8+x) \: Joules$ $Work\:done=\left (12 - 8 \right )\times (4.8+x) \: Joules$ $Work\:done=4 \times (4.8+x) \: Joules$ $Work\:done=19.2+4x\:Joules$ Work done by spring, $Work\:done\:by\:spring=\dfrac{1}{2}kx^2$ As we know, for maximum compression whole energy of block will shift into spring energy. So, we will equate both equations. So, $\dfrac{1}{2}kx^2=19.2+4x$ $\dfrac{1}{2} \times 1000 \times x^2=19.2+4x$ $500x^2=19.2+4x$ $500x^2-4x-19.2=0$ Apply, quadratic formula, $x=\dfrac{4 \pm \sqrt{16-4(500)(-19.2)}}{1000}$ $x=\dfrac{4 \pm \sqrt{38416}}{1000}$ $x=\dfrac{4 \pm 196}{1000}$ $x=0.2\:\:\:and\:-0.192$ x can't be NEGATIVE so we reject negative value of 'x'. So, $10x_{max}=10 \times 0.2\:metres$ $10x_{max}=2\:metres$ Answer :- So, ten times of maximum compression in spring is 2 metres.

3288.

A block A of mass 2 kg starts slipping down the inclined plane of inclination37° from a point 4.8 m away from the spring of constant k=1000 N/m . The coefficient of kinetic friction between the block and the inclined plane is 0.5. If the maximum compression in the spring is x_max , then find the value of 10x_max , in metre

Answer»

Topic :-

Mechanics

Given :-

A block A of MASS 2 kg starts slipping down the inclined plane of inclination 37° from a point 4.8 m away from the spring of CONSTANT k = 1000 N/m. The coefficient of kinetic friction between the block and the inclined plane is 0.5.

Formula to be Used :-

$<klux>WORK</klux>\:done\:by\:spring=\dfrac{1}{2}kx^2$

x is maximum compression in spring.

Frictional force when a block slips down =

$\mu mgcos\theta$

Force with which block slips down =

$mgsin\theta$

$Work\:Done=Force \times Displacement$

Solution :-

It is given that,

Mass of block, m = 2 kg

Inclination of plane = 37°

DISTANCE traversed by block = Distance between block and spring + Maximum Compression in spring

Distance traversed by block = ( 4.8 + x ) metres

Spring Constant, k = 1000 N/m

Kinetic friction between block and plane = 0.5

Now, calculate work done by block,

Work done = Force × Displacement

$Work\:done = ( mgsin\theta - \mu mgcos\theta) \times Displacement$

$Work\:done =\left ( (2)(10)sin37^{\circ} -\dfrac{1}{2}(2)(10)cos37^{\circ} \right ) \times (4.8+x)$

$Work\:done=\left (20 \times \dfrac{3}{5} - \dfrac{1}{2} \times 20 \times \dfrac{4}{5} \right )\times (4.8+x) \: Joules$

$Work\:done=\left (12 - 8 \right )\times (4.8+x) \: Joules$

$Work\:done=4 \times (4.8+x) \: Joules$

$Work\:done=19.2+4x\:Joules$

Work done by spring,

$Work\:done\:by\:spring=\dfrac{1}{2}kx^2$

As we know, for maximum compression whole energy of block will shift into spring energy. So, we will equate both equations.

So,

$\dfrac{1}{2}kx^2=19.2+4x$

$\dfrac{1}{2} \times 1000 \times x^2=19.2+4x$

$500x^2=19.2+4x$

$500x^2-4x-19.2=0$

Apply, quadratic formula,

$x=\dfrac{4 \pm \sqrt{16-4(500)(-19.2)}}{1000}$

$x=\dfrac{4 \pm \sqrt{38416}}{1000}$

$x=\dfrac{4 \pm 196}{1000}$

$x=0.2\:\:\:and\:-0.192$

x can't be NEGATIVE so we reject negative value of 'x'.

So,

$10x_{max}=10 \times 0.2\:metres$

$10x_{max}=2\:metres$

Answer :-

So, ten times of maximum compression in spring is 2 metres.

Discussion

3289.	How are monkeys adapted to live on trees
Answer» Answer: hm.. kinda intersting question buddy Explanation: Arboreal is the NAME given to any monkeys who LIVE in trees. These monkeys use their strong arms and LEGS to help them live happily high in the treetops. They also have another cool adaptation, a prehensile TAIL, or a tail that can GRAB and hold things.

3289.

How are monkeys adapted to live on trees

Answer»

Answer:

hm.. kinda intersting question buddy

Explanation:

Arboreal is the NAME given to any monkeys who LIVE in trees. These monkeys use their strong arms and LEGS to help them live happily high in the treetops. They also have another cool adaptation, a prehensile TAIL, or a tail that can GRAB and hold things.

Discussion

3290.	What happens if the lenght of the pinhole camera is increased?fast! tell the answer
Answer» Answer: The LUMINOUS object is MOVED towards the pinhole the SIZE of the image is increases. When the LENGTH of the pinhole camera is increased, the size of the image increases Explanation: hope you will GET!!

3290.

What happens if the lenght of the pinhole camera is increased?fast! tell the answer

Answer»

Answer:

The LUMINOUS object is MOVED towards the pinhole the SIZE of the image is increases. When the LENGTH of the pinhole camera is increased, the size of the image increases

Explanation:

hope you will GET!!

Discussion

3291.	Punan ang tamang sagot ang talaan isulat sa tamang hanay sa talaan ang mga pangungusap o sitwasyon kung ito ba ay implewensha biyolohikal,saykososyal o cultural.sagutan ito sa inyong sagutang papel in mapeh
Answer» ANSWER: SORRY I don't UNDERSTAND your question good AFTERNOON

3291.

Punan ang tamang sagot ang talaan isulat sa tamang hanay sa talaan ang mga pangungusap o sitwasyon kung ito ba ay implewensha biyolohikal,saykososyal o cultural.sagutan ito sa inyong sagutang papel in mapeh

Answer»

ANSWER:

SORRY I don't UNDERSTAND your question

good AFTERNOON

Discussion

3292.	Give two illustrations each to indicate that a force (a) produces motion,( b) stops motion
Answer» Answer: produces Motion : A car originally at rest when pushed, begins to move. A moving bicycle is stopped by applying the brakes. The speed of a moving vehicle is slowed down by applying the brakes. A player kicks a moving football to change its direction of motion. Explanation: Stop Motion: is an animated filmmaking technique in which objects are PHYSICALLY manipulated in SMALL increments between individually PHOTOGRAPHED FRAMES so that they will appear to exhibit independent motion or change when the series of frames is PLAYED back.

3292.

Give two illustrations each to indicate that a force (a) produces motion,( b) stops motion

Answer»

Answer:

produces Motion : A car originally at rest when pushed, begins to move. A moving bicycle is stopped by applying the brakes. The speed of a moving vehicle is slowed down by applying the brakes. A player kicks a moving football to change its direction of motion.

Explanation:

Stop Motion: is an animated filmmaking technique in which objects are PHYSICALLY manipulated in SMALL increments between individually PHOTOGRAPHED FRAMES so that they will appear to exhibit independent motion or change when the series of frames is PLAYED back.

Discussion

3293.	A car starts moving with5m/s^2 acceleration.It moves like this for 1 minute Then it moves with uniform velocity for next 1 min .After the driver usee break and make the car stopped in the next 10 sec.✓Find the total distance covered by the car?Step by step explanation
Answer» ANSWER: A car starts moving along a line, FIRST with acceleration starting from rest then uniformly and finally decelerating at the same rate TILL it comes to rest. The total of motion is . The average SPEED during the time is . The particle moves uniformly for second. Find the value of Hey now give me some THANKS.

3293.

A car starts moving with5m/s^2 acceleration.It moves like this for 1 minute Then it moves with uniform velocity for next 1 min .After the driver usee break and make the car stopped in the next 10 sec.✓Find the total distance covered by the car?Step by step explanation

Answer»

ANSWER:

A car starts moving along a line, FIRST with acceleration

starting from rest then uniformly and finally decelerating at the same rate TILL it comes to rest. The total of motion is

. The average SPEED during the time is

. The particle moves uniformly for

second. Find the value of

Hey now give me some THANKS.

Discussion

3294.	Give reason why?1. The early man could produce fire by rubbing together two stones.2. Aeroplanes can move at much greater speed than motor cars.do to run in brass sockets or bearingsplease give the ans
Answer» 1. The early humans discovered fire by rubbing two flint stones against each other. They used to make fires in front of the caves to scare away wild animals. ... Tools made from flint stones and animal BONES were used for various purposes. They also used to paint on cave walls for their recreation. 2. planes do not have any contact with ROAD so it has LESS friction and planes have much powerful engines as compare to cars. Thus, aeroplanes can move at a greater SPEED than motorcars related to friction. I hope it help you...

3294.

Give reason why?1. The early man could produce fire by rubbing together two stones.2. Aeroplanes can move at much greater speed than motor cars.do to run in brass sockets or bearingsplease give the ans

Answer»

1. The early humans discovered fire by rubbing two flint stones against each other. They used to make fires in front of the caves to scare away wild animals. ... Tools made from flint stones and animal BONES were used for various purposes. They also used to paint on cave walls for their recreation.

2. planes do not have any contact with ROAD so it has LESS friction and planes have much powerful engines as compare to cars. Thus, aeroplanes can move at a greater SPEED than motorcars related to friction.

I hope it help you...

Discussion

3295.	Draw a ray diagram to understand the formation of a pointed object by a plane mirror? Explain it
Answer» ANSWER: REFER IMAGE. HOPE this HELPS

3295.

Draw a ray diagram to understand the formation of a pointed object by a plane mirror? Explain it

Answer»

ANSWER:

REFER IMAGE. HOPE this HELPS

Discussion

3296.	If the key is to be coated with playinum instead of copper
Answer» ANSWER: Platinum-Plated Jewelry Can Tarnish and “Turn Your SKIN Green” It is a myth that ANYTHING coated with platinum cannot tarnish. If the layer of platinum is too THIN, it can wear away and expose the metal underneath.

3296.

If the key is to be coated with playinum instead of copper

Answer»

ANSWER:

Platinum-Plated Jewelry Can Tarnish and “Turn Your SKIN Green” It is a myth that ANYTHING coated with platinum cannot tarnish. If the layer of platinum is too THIN, it can wear away and expose the metal underneath.

Discussion

3297.	The manufacture of one of the following artificial fibrescontributed to deforestation. Identify this fibre.9 NylonTeryleneAcrylicRayon
Answer» ANSWER: Rayon Explanation: As rayon is MANUFACTURED from natural materials like WOOD PULP, the MANUFACTURE of this material contributes to deforestation.

3297.

The manufacture of one of the following artificial fibrescontributed to deforestation. Identify this fibre.9 NylonTeryleneAcrylicRayon

Answer»

ANSWER:

Rayon

Explanation:

As rayon is MANUFACTURED from natural materials like WOOD PULP, the MANUFACTURE of this material contributes to deforestation.

Discussion

3298.	How time is maximum when projectile attains maximum height
Answer» Ans: MAXIMUM height REACHED = 30.6 m, TIME of ASCENT = 2.5 s, time of flight = 5s, Horizontal range = 212.2 m, Direction of velocity after 1 s is 19o6' with horizontal

Discussion

3299.	Hiplz solve this its very urgent and incorrect answers will be reported
Answer» Explanation: 1. Laughed 2.Travelled 3. Went, begun 4. Sentenced 5. Addressed 6. Drowned, JUMPED, saved 7. Is, FOUND,grew 8. Didn't knew, allowed 9. Finished,cleaned 10. Cooked, arrived PLS MARK ME AS BRAINLIEST

3299.

Hiplz solve this its very urgent and incorrect answers will be reported

Answer»

Explanation:

1. Laughed

2.Travelled

3. Went, begun

4. Sentenced

5. Addressed

6. Drowned, JUMPED, saved

7. Is, FOUND,grew

8. Didn't knew, allowed

9. Finished,cleaned

10. Cooked, arrived

PLS MARK ME AS BRAINLIEST

Discussion

3300.	No mera matlab vo nahi tha l like you. l was just asking
Answer» ANSWER: oo EXPLANATION: MAI THORA nerves ho Gaya tha soory Yaar

3300.

No mera matlab vo nahi tha l like you. l was just asking

Answer»

ANSWER:

oo

EXPLANATION:

MAI THORA nerves ho Gaya tha soory Yaar

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