What percentage of K.E. of moving particle is transferred to a stationary particle when it strike the stationary particle of 4 times its mass.

What is the change of atomic number Z of a nucleus when it emits a beta particle?

Define the co-efficient of restitution. A particle of a mass m moving with a velocity u struck head-on against another particle of mass Km at rest.After collision the particles move with velocities V1 and V2 respectively.If the collision is prefectly elastic.Prove that the loss of kinetic energyof the particle with mass m is maximum when k=1.

What is the position vector of centre of mass of two particles of equal masses?

Show that the total linear momentum of a system of particles is equal to the product of the total mass of the system and the velocity of its centre of mass.

The time period of a simple pendulum inside a stationary lift is T. If the lift starts. moving upwards with an acceleration of g/3 what will be its time period ?

When a particle is moving with uniform velocity which of the following changes