A neutron collided elastically with the nucleus of the a carbon atom at rest . Show that the neutron lost 0.284 part of its initial kinetic energy .

A body of mass m moving with a velocity u strikes elastically a stationary body of mass 2m . After the elastic collision the bodies move with velocities v and V respectively . Show that the body of mass m loses 8/9 part of its initial kinetic energy.

A body of mass in moving with a velocity u strikes elastically a stationary body of mass 2m. After 'the elastic collision 'the bodies move with velocities v and V respectively. Show that the body of mass m loses 8/9 part of its initial kinetic energy

A mass 2m is at rest and another mass m is moving with a velocity. An elastic collision takes place between them. Show that the mass m loses 8/9 part of its initial kinetic energy in this collision.

A bullet of mass m moving with a horizontal velocity v entered a block of mass M. As a result , the block and the bullet start moving together. Show that, after the impact, m/(M+m) part of the kinetic energy of the bullet is available as mechanical energy. What happens to the rest of the energy?

Mass of an electron is 9xx10^(-31) kg. It revolves round the nucleus of an atom in a circular orbit of radius 4.0 Å with a speed of 6 xx 10^(6) m.s^(-1) . Calculate the linear kinetic energy and the angular momentum of the electron .

The kinetic energy of a slow moving neutron is 0.04 eV. What fraction of the speed of light is the speed of this neutron ? At what temperature will the average kinetic energy of a gas molecule to equal to the energy of this neutron ? [ mass of neutron : 1.675xx10^(-27) kg , Boltzmann constant, k_B= 1.38xx10^(-23) J.K^(-1) ]

In any nuclear reaction - (A) The total number of protons and neutrons remains same before and after the reaction. (B) Increase or decrease in the number of protons is equal to the decrease or increase in the number of neutrons. (C) Kinetic energy of the incident particle is approximately 8 MeV or its equivalent. (D) Some energy is released if total mass is reduced.

The temperature of a hailstone is 0^(@)C and initially it is at rest. When it falls from a height, 1/60 the part of it melts. Calculate the height, Ignore the air resistance and assume that the temperature of the surroundings is 0^(@)C . When it hits the ground, only 1/5 th of its stored energy is converted into heat.