Home
Class 11
PHYSICS
10,000 small balls, each weighting 1g, s...

10,000 small balls, each weighting 1g, strikle one square cm of area per second with velocity 100m/s in a normal direction and rebound with the same velocity. The value of pressure on the surface will be:

A

`2 xx 10^3 N m^-2`

B

`2 xx 10^5 N m^-2`

C

`10^7 N m^-2`

D

`2 xx 10^7 N m^-2`

Text Solution

Verified by Experts

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • GRAVITATION

    JBD PUBLICATION|Exercise EXAMPLE|78 Videos

Similar Questions

Explore conceptually related problems

Two billiard balls each of mass 0.05 kg moving in opposite directions with speed 6 m s^-1 collide and rebound with the same speed. What is the impulse imparted to each ball due to the other ?

A square loop of side 12 cm with its sides parallel to X and Y axes is moved with a velocity of 8 cm s^-1 in the positive x-direction in an environment containing a magnetic field in the positive z-direction. The field is neither uniform in space nor constant in time. It has a gradient of 10^-3T cm^-1 along the negative x-direction (that is it increases by 10^-3T cm^-1 as one moves in the negative x-direction), and it is decreasing in time at the rate of 10^-3T cm^-1 . Determine the direction and magnitude of the induced current in the loop if its resistance is 4.50 mOmega .

A copper atom consists of copper nucleus surrounded by 29 electrons. The atomic weight of copper is 63.5mol e^(-1) . Let us now take two pieces of copper each weighing 10g. Let us trandfer one elcetron from one piece to another for every 100 atoms in that piece. What will be the Coulomb force between the two pieces after the trandfer of electrons, if they are 1cm apart? Avogadro number= 6xx10^(23) mol e^(-1) , charge on an electron =- 1.6xx10^(-19)C.

Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m/s and 1 m/s, respectively. They collide and after the collision , the first object moves at a velocity of 1.67 m /s Determine the velocity of the second object.

A ball is droped from a 256 m high eower and at the same time another ball is projected vertical upward with velocity 32 m s^-1 in line with the first ball. Find when and where the two balls will meet each other. (g= 10 m s^-2)

A bullet of mass 50 g is fired from a gun. If the bullet acquires a velocity of 100 m s^(1) in 0.1 second, what is the recoil force on the gun?

A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3T directed normal to the loop. What is the emf developed across the cut if the velocity of the loop is 1 cm s^-1 in a direction normal to the shorter side of the loop? For how long does the induced voltage last ?

A rectangular loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magntude 0.3 T directed normal to the loop. What is the voltage developed acros the cut, if the velocity of the loop is 1 cms^-1 in a diretion normal to the shorter side of the loop. For how long does the induced voltage last in each case?

Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 ms1 and 1 ms. respectively. They collide and after the collision the first object moves at a Velocity of 1.67 m s^(-1) . Determine the velocity of the second object.

A ball is projected from O with an intial velocity 700 cm/s in a direction 37^@ above the horizotal. A ball B, 500 cm away from O on the line of the intial velocity of A, is released from rest at the instant A is projected. Find the direction and magnitude of the velocity A at the time of impact. [given g = 10m//s^2, sin37^@ = 0.6 and cos37^@ = 0.8]