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1001.

What will be the result of discharging 70000 cal from 100 g steam at 100 degree C ? The melting point of ice is 80 cal / g and the melting point of steam is 538 cal / g.​

Answer»

ANSWER:

LET the NUMBER be a

52xa=25xa+324

52a=25a+324

52a-25a=324

27a=324

a=12. Answer

1002.

The pressure exerted by the gas molecules on the walls of a vessel increases if the: (a) Temperature of the gas decreases (b) Velocity of the molecules of the gas decreases id Collision of the molecules of the gas with its walls increases (d) None of the above happens​

Answer»

C. collision of the molecules of the gas with its WALLS increases

I HOPE it will HELP you ❤

1003.

Sin-1((0.02356)2/3) log ​

Answer»

Explanation:

1.सत्यवती कौन थी

2.केवट रानी राजा शांतनु के आगे क्या शर्त रखी है

3.देवव्रत ने अपने पिता की इच्छा पूरी करने के लिए क्या किया

4.देवव्रत का नाम विभीषण क्यों पड़ा

5.राजा शूरसेन ने कुंतीभोज को क्या वचन दिया था

6.प्रथा कौन थी

7.प्रथा का नाम कुंती कैसे हुआ

8.कुंती ने किस ऋषि की सेवा की थी

9.ऋषि दुर्वासा ने कुंती को क्या वरदान दिया

10.कर्ण कौन था उसका पालन पोषण किसने किया

11.कुंती का विवाह किससे हुआ

12.महाराज पांडु को श्राप क्यों मिला

13.पांडवों का जन्म कैसे हुआ

14.महाराज पांडु की मृत्यु कैसे हुई

1004.

What is relative velocity ?

Answer»

Answer:

the vector differences between the velocities of two BODIES :the VELOCITY of a body with respect to another regarded as being at rest ___compare relative MOTION

EXPLANATION:

hope this was helpful

1005.

Name the units in which volume of liquids is measured.

Answer»

ANSWER:

VOLUME of LIQUIDS is MEASURED in LITRES

1006.

A shell of mass 200 g is ejected from a gun of mass 4 kg by an explosion that generates 1.05 kJ of energy. The initial velocity of the shell is :​

Answer»

\small \bold{ \frac{E_1}{E_2}  =  \frac{m_2}{m_1}  \implies \frac{4}{0.2}  = 20 \implies \: E_2 =  \frac{E_1}{40} }

\bold{E_1 + E_2 = 1050 \: joule}

\small \bold{ \therefore \: E_1 =1000 \:  joule \: (energy \: of \: cell)}

\small\bold{ \therefore \: K.E. \: of \: shell =  \frac{1}{2}  \times m_1v {}^{2} _1}

\bold{1000 \times  \frac{1}{2}  \times (0.2) \times v {}^{2}  _1}

\bold{ \therefore \: V_1 =  \sqrt{10000}  = 100 \: m/s}

1007.

Pysics is. Difficant subject

Answer»

ANSWER:

YES PHYSICS is difficant SUBJECT

1008.

if an object is on the surface of the earth.... we use the radius of the earth which starts at its centre to the place where the object meets, why is it that we don't take the distance of the object from the centre?

Answer»

ANSWER:

PLZ GIVE the QUESTIONS PROPERLY

1009.

Draw transverse wave of amplitude 2cm and wavelength 4cm

Answer»

REFER to the ATTACHMENT\huge{\nearrow}

1010.

a sphere of density d specafic heat capacity c is hung by a thermally insulating thread in a enclosure which is kept at lower temp than sphere the temp of sphere starts drop at rate which depends upon if the temp is delta t and surrounding temp t0 then rate of fall in temp is​

Answer»

Answer:

A sphere of density d , specific heat s and radius r is hung by a thermally insulating thread in an enclosure which is kept at a lower TEMPERATURE than the sphere. The temperature of the sphere STARTS to DROP at a RATE which depends upon the temperature DIFFERENCE between the sphere and the enclosure. If the temperature difference is DeltaT and surrounding temperature is T_(0) then rate of fall in temperature will be
[Given that DeltaT lt lt T_(0) ]

1011.

A boy runs in a rectangular track of length 60m and breadth 40m . He takes 5 second in completing one and haft rounds. Find the speed and and velocity of the boy ​

Answer»

REFER to the ATTACHED PIC

#@SCIENCE guyy xd

1012.

A bucket of water tied to a rope is being pulled up from a well asshown in the figure below (fig 1). Name the two forces acting on the bucket in the upward and downward directions. Also mention whether these forces are contact or non-contact forces by nature

Answer»

Explanation:

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)Positive

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given CASE, force and displacement are in the same direction. Hence, the SIGN of work done is positive. In this case, the work is done on the bucket.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) Negative

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically DOWNWARD) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.(c) As force and displacement are in opposite directions, work done is negative.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.(c) As force and displacement are in opposite directions, work done is negative.(d) As force and displacement are in the

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.(c) As force and displacement are in opposite directions, work done is negative.(d) As force and displacement are in THESAME direction, work done is positive.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.(c) As force and displacement are in opposite directions, work done is negative.(d) As force and displacement are in thesame direction, work done is positive.(e) As force and displacement are in opposite directions, work done is negative.

1013.

How can you determine the volume of solid describe the steps with

Answer»

Answer:

To measure the volume of a piece of stone:

1.Take a piece of BRASS, a measuring cylinder, fine thread of sufficient length and some water.

2.Place a measuring cylinder on a flat horizontal surface and FILL it partially with water.

3. Note the reading of the water LEVEL very CAREFULLY.

4.Now tie the piece of brass with a thread and dip it completely into water. We see that the level of water RISES.

5.Note the reading of the new water level.

6.The difference in the initial and final water level reading's gives us the volume of stone.

1014.

A loaded sack of mass 100kg falls down from the floor of a lorry 2m high. Calculate the work done by gravity on the load (g=10mls2)

Answer»

Explanation:

MASS-100KG(GIVEN)

HEIGHT-2M

ACCELERATION DUE TO GRAVITY=10M/SO

THEREFORE,

BY USING THE FORMULA OF POTENTIAL DIFFERENCE,

WE GET,

MASS×GRAVITY FORCE×HEIGHT

SO,

100×10×2

2000Joules.

hope it helps...... PLEASE MARK as BRAINLIEST

1015.

Electric Generator construction​

Answer»

ANSWER:

XAVIER EVEN here ? UNBELIEVABLE WOW....

1016.

(C) SUSZ 227.A circuit has a fuse having a rating of 5A. What is the maximum number of 100 W-220 V bulbs that can be safely connected in parallel in the circuit ? (a) 20 (b) 15 (c) 11 (d) 10 b[CDS 2018]​

Answer»

Answer:

C) 11

Explanation:

MAXIMUM number of 11 BULBS can be USED.

1017.

If radius r and height h of a circular cylinder is increasing at the rate of a and ß with time then find the rate of change of volume of the cylinder with time when r= 2 m and h = 5 m.​

Answer»

V = πr²h

dv/dt = 2πr dr/dt * dh/dt

dv/dt = 2π (2) *ALPHA*BETA

dv/dt = 4π alpha beta

1018.

11) ______is period of simple pendulum if length of pendulum 10 m and acceleration due to gravity is (g=10 m/s^2) a) 6.28 b) 3.14 c) 2.5. d) 5​

Answer»

ANSWER:

EVERYONE is ASKING this QUESTION only

1019.

A soap filled is formed when a rectangular wire plane of area 2cmX2cm is dipped in soap solution and taken out ,if the area of the filled is increased to 3cmX3cm centigrate calculate the work done in the process, circumstances of the soap filled is 3X10^-2 n by m​

Answer»

Answer:

Data A1=2×2cm2=4×10−4m2,

A2=3×3cm2=9×10−4m2,T=3×10−2N/m

As the film has two SURFACES, the WORK done is

W=2T(A2−A1)=2(3×10−2)(9×10−4−4×10−4)=3.0×10−5=30μJ.

Explanation:

PLZ MARK me as BRILLIANT

1020.

Hldear scribe importance of force in a day to day life​

Answer»

Answer:

MATE ur answer to this question is

Force is EVERY where while u sit or stand any WORK is accompanied by u it expands force proceeding NEAR by u

HoPe this helps you

1021.

Electric Generator construction and working ??​

Answer»

Answer:

PRINCIPLE: Electric GENERATOR works on the principle of ELECTROMAGNETIC induction. When the coil of electric generator rotates in a magnetic FIELD, the magnetic field induces a CURRENT in this coil. This induced current then flows into the circuit connected to the coil.

1022.

A stone of mass 1 kg is rotated in a horizontal100circle of radius 0.5 m. If it makesrps,TT2 -112-1then its angular momentum is(A) 50 kg m's(B) 2.5 x 10-kg m’s(C) 51² x 10-kg m’s(D) 800 kg m's2 -1​

Answer»

ANSWER:

Buddy, the answer is option A) 50 kg m's

Hope this answer helps you, if so then PLEASE follo.w me and MARK me as BRAINLIEST :)

1023.

11) is period of simple pendulum if length of pendulum 10 m and acceleration due to gravity is g=10 m/s​

Answer»

ANSWER:

RAM ram ram ram tamramram ra.

Explanation:

ram ramramtam RSN

1024.

No SPAM PLS ANSWER IF YOU KNOWi forgot to attatch this in my previous question... ​

Answer»

\int _{ \frac{\pi}{2} } ^{0}  \frac{1 +  \cos(2t) }{2}  \: dt \\  \frac{1}{2}  \int _{ \frac{\pi}{2} } ^{0}  \{1 +  \cos(2t)   \}\: dt \\  \frac{1}{2}  \{  \int _{ \frac{\pi}{2} } ^{0} dt +  \int _{ \frac{\pi}{2} } ^{0}  \cos(2t)  dt\} \\  \frac{1}{2}  \{ \: t  |  ^{0}  _{ \frac{\pi}{2}   }  +   \frac{ \sin(2t) }{2} |  {}^{0}  _{ \frac{\pi}{2} } \} \\  \frac{1}{2}  \{ \: 0 -  \frac{\pi}{2}  +  \frac{ \sin(0) }{2}  -  \frac{ \sin( \frac{\pi}{2} ) }{2}  \} \\  \frac{1}{4}  \{ - \pi  -  1) \\  =  \frac{ - (\pi + 1)}{4}

1025.

What happens when increasing the temperature the speed of sound in air

Answer»

Answer:

Air molecules have more energy at higher temperatures, which means they VIBRATE FASTER. This allows the SOUND WAVES to also travel faster because they are propelled by collisions between the molecules

1026.

a power station has an efficienxy of 40% and generates 1000 mw of electric power what is the input power and the wasted power

Answer»

ANSWER:

jsjsvegdidmdjkemehdjdjuenrjrjrjrjrutj

1027.

Ohm's law gives a relationship between :1 pointCurrent and resistanceResistance and potential differencePotential difference and electric chargeCurrent and potential difference

Answer»

ANSWER:

CURRENT and RESISTANCE

1028.

Advantages of hydel power plant over thermal power plant?​

Answer»

Hydel POWER plant is cheaper

Hydel power plant is environmental friendly

Hydel power plant TAKES LESS time to CONSTRUCT

Hydel power plant uses water which is RENEWABLE source

1029.

ऑटोमोबाइल बैटरी में प्रयुक्त होने वाला अम्ल है

Answer»

EXPLANATION:

बैटरी मे सल्फ़ीयूरिक्अम्ल का प्रियोग किया जाता हैं

1030.

If a and b are two physical quantity having different dimensions then which of the following operation is meaningless

Answer»

ANSWER:

A+B and A-B are MEANINGLESS

1031.

Can you answer this no bakwas only padhai wale anwers kare ​

Answer»

ANSWER:

Idk

Explanation:

i don't know

if you can FIND it yourself

1032.

Hlo dear friendsDescribe importance of force .in a day to day life plz plz give very long answer​

Answer»

Answer:

LIVES, forces and motion make things move and stay STILL. Motion is just movement needing a FORCE to act upon it. Pushing and pulling are examples of forces that can SPED things up or SLOW things down.

I hope you understand dear

ok good night

byyy

1033.

What is theory of realitivity ​

Answer»

Answer:

ESSENTIALLY, it's a theory of gravity. The basic IDEA is that instead of being an invisible FORCE that attracts objects to ONE another, gravity is a curving or warping of space. The more massive an object, the more it warps the space around it

Explanation:

The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. Special relativity applies to all physical phenomena in the ABSENCE of gravity

hope It's help you

1034.

If two sources are not coherent then theinterference pattern(A) is well defined.(B) is not obtained.(C) is not distinct.(D) consists of very narrow fringes.​

Answer»

ANSWER:

is not obtained

Explanation:

ANS OPTION (B)

1035.

10. ----- clock look like a classic clock​

Answer»

Explanation:

मराठी मध्ये शोधा

घड्याळ क्लासिक घड्याळासारखे दिसते

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1036.

Using dimensions, find the value of gravitational constant (G) in CGS system​

Answer»

ANSWER:

Value of universal GRAVITATIONAL constant G in C.G.S is.

system the unit of G is Nm2kg-2. The value of the gravitational constant in SI unit is G=6.67×10−11(Newton)(m)(kg). So, the value of the gravitational constant in SI unit is G=6.7×10−8(DYNE)(CM)(g)

1037.

Please solve the above question I was trying to solve it from so long​

Answer»

3x²/2 + x⁴/4*4

1.5x² +x⁴/16

putting limits

1.5(4)²+4⁴/16

1.5*16 + 16

24+16

40

1038.

Draw a graph for When an object is moving with increasing acceleration having zero initial velocity.

Answer»

Answer:

I HOPE this will HELP you

EXPLANATION:

plz mark me as BRILLIANT

1039.

Draw the curve obtained in the experiment of tangent galvanometer and show the method of calculation of radius of cool using this graph​

Answer»

ANSWER:

a force is a PUSH or pull which is APPLIED to the SURFACE

1040.

What is the role of a jockey in an electric circuit?​

Answer»

ANSWER:

the jockey is used to slide on the bridge WIRE

1041.

The sum of all energies of all molecule in a body is called as..

Answer»

ANSWER:

INTERNAL ENERGY

HOPE it HELPS

1042.

If focal length of a concave mirror is 30cm an object is placed at distance of 15 cm from the mirror where will the image formed? Also tell nature of image. *

Answer»

f=-30cm

u=-15cm

v=?

1/f=1/u+1/v

1/v=1/f-1/u

=(1/-30)-(1/-15)

=(1/-30)-(2/-30)

=-1/-30

=1/30

v=+30cm

The IMAGE is VIRTUAL,ERRECT and MAGNIFIED

1043.

If wave produced in microwave oven are the wavelength 12cm then their frequency will be

Answer»

\underline{\underline{\Large{\bf Given:-}}}

\bull\sf wavelength=\lambda=12cm=1.2\times 10^{-3}m

\underline{\underline{\Large{\bf To\:Find:-}}}

\bull\sf Frequency=v=?

\underline{\underline{\Large{\bf Solution:-}}}

We KNOW

\boxed{\sf \lambda=\dfrac{C}{V}\left(\because C=Speed\:of\:light\:in\:vaccum\right)}

\\ \sf\longmapsto v=\dfrac{C}{\lambda}

\\ \sf\longmapsto v=\dfrac{3\times 10^8ms^{-1}}{1.2\times 10^{-3}m}

\\ \sf\longmapsto v=2.5\times 10^{11}s^{-1}

\\ \sf\longmapsto v=2.5\times 10^{11}Hz

\underline{\sf{\therefore Frequency\:of\:the\:wave\:is\:2.5\times 10^{11}Hz.}}

1044.

Write down about any three great minds of chemistry in detail​

Answer»

ANSWER:

CHEMISTRY POINTS THANKS the ponits

Explanation:

1045.

-डी ब्रोग्ली समीकरण की ​

Answer»

ANSWER:

MEANS D brogli cinemakkaran KI

1046.

a ball thrown upward Rises to a height and then Falls back to the graph if we neglect the air resistance hhow will it's speed-time graph look like

Answer»

Explanation:

if air resistance is NEGLECTED,SPEED time graph will LOOK the same.

that is though sir resistance is not working,the gravity is working...this means the graph would GO up and then come down.

1047.

What are the depending factors of speed? What are the not depending factors of speed?

Answer»

Answer:Two factors that determine RUNNING speed are stride cadence and stride LENGTH. Stride cadence refers to the number of STRIDES taken per second, and stride length refers to the distance traveled by each stride. The product of these factors gives a mathematically ACCURATE description of running speed.

1048.

For the following vector field F, decide whether it is conservative or not by computing the appropriate first order partial derivatives. Type in a potential function f (that is, ▽ f = F) with f(0, 0) = 0.‏‏‎ ‎F (x, y) = (-14x - 2y)i + (-2x + 14y)j• Answer it correctly.• Please don't spam. • Need full explanation. • Don't give any irrelevant answer.━━━━━━━━━━━━━━━━━━━━━━━━━━​

Answer»

Given

A vector field F (x, y) = (-14x - 2y)i + (-2x + 14y)j .

To Find

Whether this field is conservative or not.

Concept

A field is CALLED conservative if it is path independent. The curl of such field will be zero. That is ▽ X F = 0. In other words, it can be SAID that a field  will be conservative if it can be written as gradiant of a scalar field. In my SOLUTION, i have used this approach. I TRIED to find a scalar field whose gradiant is the given field.

1049.

WHAT IS PHOTOSYNTHESIS?HELLO FRIE.NDS..JØÏN MY FRIE.NDS ONLY​

Answer»

the PROCESS by which a plant uses carbon DIOXIDE from the air, water from the ground, and the ENERGY from the light of the sun to produce its own food and oxygen

1050.

Q.1- what was the budget of Apollo11 moon mission of NASA?Q.2- why the moon of NASA Apollo13 is called successful failure mission?NOTE- GIVE ANSWER ACCORDING TO THE QUESTION OTHERWISE I WILL REPORT YOUR ANSWER. DO NOT COPY AND PAST FROM ANY WEBSITE.​

Answer»

Answer:

NASA spent $2.4 billion on the lunar module (LM), or approximately $23 billion in 2020 dollars. Annual costs for the Lunar Module (LM) compared to the direct costs of Project APOLLO. AMOUNTS adjusted for inflation.

.

.

Today is the 50th anniversary of the launch of the Apollo 13 MISSION that never made it to the moon, the one where Commander Jim Lovell uttered the phrase “Houston, we've had a problem.” NASA CALLS the mission a “successful failure,” because even though an EXPLOSION crippled the primary spacecraft two days in, Lovell