# Question: A particle of mass m initially moving with speed v

A particle of mass m, initially moving with speed v, collides head on elastically with an identical particle initially at rest.

(a) Do you expect the total mass of the two particles after the collision to be (1) greater than 2m, (2) equal to 2m, or (3) less than 2m? Why?

(b) What are the total energy and momentum of the two particles after the collision, in terms of m, v, and c?

(a) Do you expect the total mass of the two particles after the collision to be (1) greater than 2m, (2) equal to 2m, or (3) less than 2m? Why?

(b) What are the total energy and momentum of the two particles after the collision, in terms of m, v, and c?

## Answer to relevant Questions

(a) Using the relativistic expression for total energy E and the magnitude p of the momentum of a particle, show that the two quantities are related by E2 = p2c2 + (mc2)2. (b) Use this expression to deter-mine the linear ...A boat can make a round trip between two locations, A and B, on the same side of a river in a time t if there is no current in the river. (a) If there is a constant current in the river, the time the boat takes to make the ...Two spaceships, A and B, each with a speed of 0.60c relative to Earth, approach each other head on. (a) The speed of ship A relative to ship B is (1) greater than c, (2) equal to c, (3) less than c. Why? (b) What is the ...At a typical nuclear power plant, refueling occurs about every 18 months. Assuming that a plant has operated continuously since the last refueling and produces 1.2 GW of electric power at an efficiency of , how much less ...In Compton scattering, if the photon is scattered at a angle, in which direction will the electron recoil? Why?Post your question