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GIVEN:-

• MASS of 1st body (m) = 16gm

• Acceleration of 1st body (a) = 5m/s²

• Mass of 2ND body (m') = 20gm

• Acceleration of 2nd body (a') = 3m/s²

To Find:-

• Which WOULD required greater force.

Solution:-

Firstly we convert the mass of body in kg

1kg = 1000 Gram.

Mass of 1st body = 16/1000kg = 0.016Kg

Mass of 2nd body = 20/1000 = 0.002Kg

Now, Force for 1st body

⟹ Force = Mass × Acceleration

Put the value which is given above

⟹ F = 0.016×5

⟹ F = 0.08N

∴ Force required for 1st body = 0.08N .....(i)

Now Force required for 2nd body

⟹F = m'×a'

⟹ F = 0.002×2

⟹F = 0.004 N

∴ Force required for 2nd body = 0.004N. ...(ii)

From 1st and 2nd case we get

The greater force required for 1st body .

Answer:

10 GN mass

Explanation:

HOPE its HELPFUL

Answer:

Let us assume that resistance of each bulb is R

CASE(1)

CURRENT in each bulb =

3R

V

case (2)

Net current =

R

3V

Current will GET equally divided in three bulbs =

3

I

=

R

V

Bulbs in case (2) will glow with great brightness current ∝ Brightness

B) Now I one bulb gets fused, in case (9) rest of bulbs will not glow because in SERIES voltage eruption in one appliance will affect other appliances.

But in case (b) all other bulbs will glow as voltage eruption in one bulb does not affect the voltage of other bulbs.

Explanation:

Magnitude of magnetic field

All current elements are at equal linear distance from point P. As a result, the magnitude of magnetic field at P due to any of the equal current elements is same.

đB1=đB2=…….

Direction of elemental magnetic field

Unlike enclosed angle (θ), linear distance (R) and magnitude of magnetic field, the direction of magnetic field due to current elements are not same. As such, we can not integrate Biot-Savart differential expression to determine NET magnetic field at P. Let us investigate the direction of magnetic fields due to TWO diametrically opposite current elements. Let the circular wire lie in yz plane as shown in the figure.

Direction of elemental magnetic field

Magnetic field is perpendicular to plane formed by current length element and displacement vectors.

The current length vector dl1 and displacement vector r1 form a plane shown as plane 1 and the magnetic field due to current element, B1, is perpendicular to plane 1. Similarly, the current length vector dl2 and displacement vector r2 form a plane shown as plane 2 and the magnetic field due to current element, B2), is perpendicular to plane 2. CLEARLY, these magnetic fields are directed in three dimensional space. If we imagine magnetic fields due to other current elements of the circular wire, then it is not difficult to imagine that these elemental magnetic fields are aligned on the outer surface of a conic section and that they are not in same plane.

Direction of elemental magnetic field

Magnetic fields are aligned on the outer surface of a conic section.

Another important point to observe is that all elemental magnetic field vectors form same angle φ. This can be verified from the FACT that B1 is perpendicular to AP and Px is perpendicular to OA. Hence, angle between B1 and Px is equal to angle between OA and AP i.e. φ with x-axis. By symmetry, we can see that all elemental magnetic field vectors form the same angle with x- axis.

Resolution of elemental magnetic field vectors and net magnetic field

We resolve magnetic field vectors along x-axis and perpendicular to it, which lies on a plane perpendicular to axis i.e a plane parallel to the plane of circular coil (yz plane) as shown in the figure. We have shown two pairs of diametrically opposite current elements. See that axial components are in positive x-direction. The perpendicular components, however, cancels each other for a diametrically opposite pair.

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EXPLANATION:

The MAIN difference between angle of friction and angle of repose is that the angle of friction is DEFINED as the angle between the normal reaction force and the resultant force of normal reaction force and friction when an object just begins to move, whereas the angle of repose is defined as the MINIMUM angle of an ..

Answer:

A MAGNETIC FIELD is a vector field that describes the magnetic INFLUENCE on an electric charge of other moving charges or magnetized materials. A charge that is moving in a magnetic field experiences a force PERPENDICULAR to its own velocity and to the magnetic field

Explanation:

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ANSWER:

MOISTURE And OXYGEN MAYBE

ANSWER:

THERMAL FORCE I THINK.........

Answer:

GIVEN -

Wavelength of light in water = 4000A°

wavelength of light in glass = 2500A°

To find - Refractive INDEX of glass with respect to water

Solution -

\mu = \frac{ \lambda(1)}{ \lambda(2)}μ=

λ(2)

λ(1)

then SUBSTITUTING the values we get

\mu = \frac{4000}{2500}μ=

2500

4000

therefore Refractive index of glass is

\mu(g) = 1.6μ(g)=1.6

ANSWER:

SPECIFIC HAET MEAN 6.4

Answer:

the required answer is 4.5 Nm

GIVEN:

• distance,d = 30cm
• force ,F = 15 N

TO FIND:

magnitude of moment of force,M

MOMENT OF FORCE:

• moment of force is also called torque.

• moment force is defined as the product of force APPLIED and the perpendicular distance

• moment of force RESULTS in the rotation of object at the point of hinge

• it is a VECTOR quantity

FORMULA:

moment of force ,M = f× d

SOLUTION:

STEP 1: TO CHANGE THE UNIT OF DISTANCE.

• it is necessary to change the unit of distance to standard unit.

• standard unit of distance is metre

• 100cm = 1 m

• so, 30 cm will be 30/100 m

• so the distance in standard unit is d=0.3

STEP 2: TO FOND THE MOMENT OF FORCE

M=f×d

=15×0.3

M =4.5 Nm

ANSWER:

the magnitude of moment of force is 4.5 Nm

Answer:

A person PUSHING a swing will MAKE the swing rotate about its PIVOT. A worker applies a FORCE to a spanner to rotate a nut. A person removes a bottle's cork by pushing down the bottle opener's lever. A force is applied to a door knob and the door swings open about its hinge.

Explanation:

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ANSWER:

very ez

Explanation:

so FOLLOW me so first the FORMULA is 100/F1 plus 100/F2 is EQUAL to 100/total focal length so when you use the formula you will get 0.12 Dioptre

Answer:

here is your answer

Explanation:

The focal length of the LENS varies directly with the WAVELENGTH of the light used and as wavelength is inversely related to REFRACTIVE index, the focal length ALSO varies inversely with it. This is the PRINCIPAL cause of the phenomena of chromatic aberration. The frequency of light has no effect on the focal length

ANSWER:

GRAVITATIONAL FORCE.............

ANSWER:

X/speed of light in air=4/3

x=(4*3*10^8)/3

x=4*10^8m/s.

where x is speed of light in water

similarly,for diamond

y=7.26*10^8m/s

where y is speed of light in diamond

reqd. answer=2.42/(4/3)=3.2(approx)

HOPE it HELPS

ANSWER:a

Explanation:

I HOPE IT'S HELPFUL FOR YOU AAYUSH ☺☺.

Answer:

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EXPLANATION:

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ANSWER:

A. 1 MM of HG. This is the RIGHT answer...

Answer:

Rub the magnet against the sewing needle at least five TIMES. (If you are using a weaker magnet, such as a flat refrigerator magnet, rub the needle at least a dozen times.) Always rub the magnet in the same direction against the needle. Your needle should now be magnetized.

Now cut off about one quarter inch of the cork from one of the ends, making a small cork disk that is about one-quarter-inch tall.

Laying the cork disk on a flat surface, carefully push the needle through the side of the disk by using the pair of pliers. Push the needle all the way through the disk so that about the same amount of needle shows on either side of the disk.

Fill a wide cup, drinking glass or bowl with at least one inch of water.

Put the cork disk (with the needle) on the water in the cup. Try to keep the disk floating in the center of the water, away from the sides of the cup. What does the needle do? When it stops moving, what direction does it point TOWARD?

Does your homemade compass seem to work WELL? How is it limited in its use?

Extra: Find out what direction north is in your location. Did your needle point in that direction? (You can use a real compass, an atlas or smartphone map for this.)

Extra: Put a magnet next to your compass. What happens to the needle as the magnet is moved close to it? How close does the magnet need to be to affect the compass? You could also try this with a steel object (such as a nail or possibly the pliers).

Extra: If you have magnets with DIFFERENT strengths, such as a flat refrigerator magnet and a rare earth magnet, try making multiple compasses using the different magnets to magnetize the needles. How well do the different compasses work compared with one  another?

Extra: There are other ways you can make an inexpensive magnetic compass at home or while you are outdoors. For example, instead of using a piece of cork, you could try using a small leaf and setting the needle on top of the leaf while it floats in a still pool of water. How does a compass made using a leaf compare with one made using a piece of cork? How else could you make a magnetic compass?

Observations and results

Did the needle in your homemade compass align itself ALONG the Earth's north and south poles?

When you rubbed the magnet against the sewing needle, you magnetized the needle, effectively making it a weak, temporary magnet. Because magnets interact with one another (pushing against one another or pulling one another together), the magnetized needle can interact with Earth's magnetic field. Although Earth's magnetic field is relatively weak, it should have clearly affected the needle because the needle was allowed to freely float in the cork disk on the water. Specifically, once it stopped moving, the needle should have aligned itself along Earth's magnetic field, lining up along the north/south axis. This means that one end of the needle should have pointed north, while the other pointed south. The same end should have always pointed the same direction. (You can do some more research to figure out how to make a compass that always has the needle's tip point a specific direction—either north or south.)

Explanation:

ANSWER:

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Answer:

3:4

Explanation:

R=(RHO*L)/A

Since A and rho are same

R1/R2=60/80

=3/4

ANSWER:

it is because of GRAVITY

ANSWER:

50 MS is ur REQUIRED answer hope it helps you PLEASE

Explanation:

Answer:

0.0185m/s²

Explanation:

Given :

• INITIAL velocity,u => 0m/s [As it is STARTING from the rest]

• Final velocity,v => 40km/hr = 11.1m/s    

[1km/hr = 1000/3600m/s]

• Time,t = 10min = 10*60 = 600s               [1min = 60s]

Find :

• Acceleration,a

Solution :

According to the 1st equation of motion:-

Put their values and solve it

Hence,acceleration is equal to 0.0185m/s²

☆Additional Information☆

• 2nd equation of motion

• 3RD equation of motion

Explanation:

On a clear, dark NIGHT, our eyes can see about 6,000 or so stars in the sky. They seem to twinkle, or change their brightness, all the time. In fact, most of the stars are shining with a steady light. The movement of air (sometimes called turbulence) in the atmosphere of Earth causes the starlight to get slightly bent as it travels from the distant star through the atmosphere down to us on the GROUND. This means that some of the light REACHES us directly and some gets bent slightly away. To our eyes, this makes the star seem to twinkle.

You will notice that stars closer to the horizon will appear to twinkle more than other stars. This is because there is a lot more atmosphere between you and a star NEAR the horizon than between you and a star higher in the sky. Go out some night soon and have a look!

Stars also do not blink their eyes (they don't have any!), tip their HATS, nor take a bow!

ANSWER:

F=4500N

Explanation:

m=1500kg

u=0m/s

v=30m/s

t=10 sec

a=(v-u) /t

a=3m/s^2

F=1500*3=4500 N

Also UNIT of VELOCITY is m/s not m/s^2

ANSWER:

by 10 PERCENT SUNILS income is more than ANIL

Answer:

in what PATTEM you should join three RESISTANCE of 2 ohms each to get resultant resistance of 3 Obm?. please make me BRAINLIST

Answer:

Electricity is one of the FORMS of energy which involves the flow of electrons. It is a basic part of nature and the most commonly used form of energy. The GENERATION of electricity happens with the help of a device called an electric generator. When a current-carrying conductor moves across a magnetic field, an electric current generated in the conductor.

A magnet is used at the end of the rotating shaft which is placed within a stationary conducting ring which is a long and a continuous piece of WIRE. A small amount of electric current is induced through the conductor at DIFFERENT sections as the magnet keeps moving. All these small currents add up to one considerable amount of current which is known as electric power.

Explanation:

ANSWER:

R1:r2=3/4

hope its what U ASKED for

The angle of repose, or critical angle of repose, of a granular material is the STEEPEST angle of descent or dip relative to the HORIZONTAL plane to which a material can be piled without SLUMPING. At this angle, the material on the SLOPE face is on the verge of sliding. The angle of repose can range from 0° to 90°.

Answer:

∴Force is inversely proportional to E°

Explanation:

we know that force between any two point charge(q1 and q2) is

1/4piE * q1q2/seperation^2

here pi is 3.14,

q1 and q2 are charges

and E is permittivity for any medium

and E° is the permittivity for FREE space ( vacuum )

we know that

E = k E°

here k is Dielectric CONSTANT ( mostly GIVEN in the QUESTIONS )

we have k = 1 for vacuum

∴E = E° ( for free space )

that is force for free space = 1/4piE° *q1q2/seperation^2

∴Force is inversely proportional to E°

hope it is helpful................

ANSWER:

where is ANOTHER COLUMN BRO

Answer:

hmmm.........THATS correct.....

Explanation:

We KNOW, if the unit is INCREASING then the numerical value is decreasing and if the unit is decreasing then the numerical value is increasing. HENCE, n∝ 1/u.

Answer:(C) 0.4N is the CORRECT answer

Explanation:MASS=200g or 0.2kg

u=20m/s

v=10m/s

T=5s

a=v-u÷t

=10-20÷5

=-2m/s²

FORCE=MASS× ACCELERATION

=0.2×2

=0.4N

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1ST ans:the right hand rule to find the direction of magnetic field due to current ELEMENT is as follows:

Right hand rule states that, if the thumb of the right hand is in the direction of the current flow then, the CURL fingers show the direction of the magnetic field

ANSWER:

When unit CURRENT is passed through a wire having p. d 1 Volt, RESISTANCE of wire is 1 ohm

Resistivity is the property which opposes the flow of current through a resistor

Direction of CONVENTIONAL is opposite to the flow of ELECTRONS

The gravitational FORCE between the earth and an OBJECT on the surface of the earth is

= F = GMm/ R 2

Where G is the universal gravitational constant.

M is the MASS of earth.

m is the mass of the object.

Distance between the the earth's centre and object = Radius of the earth = R.

Answer:

Rolling FRICTION takes place when an object rolls on the surface. Sliding friction takes place when two SURFACES are RUBBED against each other. Rolling friction takes place due to the deformation of surfaces. Sliding friction takes place due to INTERLOCKING between microscopic surfaces.

Answer:

DIFFERENT masses

Explanation:

for example u r 100ml of water and oil their volume is same but water is denser than oil

• the same for iron and aluminium

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Answer:

If the body RETURNS to the same point from where it STARTED, the DISPLACEMENT will be zero. One EXAMPLE is : we go to school starting from HOME and again return home. so displacement is 0.

Answer:-

• Location Of Image = 6 cm behind the MIRROR.

• Height of the image = 0.84 cm.

• Nature of image = Virtual And erect.

Explanation:-

Given:-

• Height of the object (ho) = 1.4 cm

• Focal length of the convex mirror (f) = 15 cm.

• Object DISTANCE (u) = 10 cm.

To Find:-

• Location of the image (v).

• Height of the image (hi).

• Nature of the image.

Formulas USED:-

Mirror Formula:-

Magnification Formula:-

So Here,

• v = ?? [To Find]

• u = -10 cm (As the object distance is always taken as negative).

• f = 15 cm (As the focal length of convex mirror is always positive).

• hi = ?? [To Find].

• ho = 1.4 cm

Now,

By putting the values in formula (1) we get:-

Therefore Image Distance Is 6 cm and since it is positive so the image is formed behind the mirror.

Similarly,

By Putting The Values in formula (2) we get:-

Therefore The Heigth Of The Image Is 0.84 cm.

Therefore,

• Image Position = 6 cm behind the mirror.

• Height of the Image = 0.84 cm.

• Nature of the Image = Virtual And Erect.

Lord Henry CAVENDISH

In equation FORM, this is often expressed as follows: The constant of proportionality in this equation is G - the universal gravitation constant. The VALUE of G was not experimentally determined until nearly a CENTURY later (1798) by Lord Henry Cavendish using a torsion balance.

Answer:

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Explanation:

If the body RETURNS to the same point from where it started, the displacement will be zero. One EXAMPLE is : we GO to school starting from home and again return home. so displacement is 0.

ANSWER:

rbc

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EXPLANATION:

cuchchcjvn MM mnkvhck L J ibpnjn lbofyxuvmboj0gtkbm l jkvn K ojpi

Answer:

The Gas Laws

A. Boyle's Law

Boyle's Law states: If the temperature of a gas sample is kept constant, the volume of the sample will vary inversely as the pressure varies. This statement MEANS that, if the pressure increases, the volume will decrease. If the pressure DECREASES, the volume will increase. This law can be EXPRESSED as an equation that relates the initial volume (V1) and the initial pressure (P1) to the final volume (V2) and the final pressure (P2). At constant temperature

EXPLANATION:

I THINK the ANSWER is MASS