PLEASE HELP A ball of mass m = 0.27 kg and velocity v = 5.2 m/s collides head-on with a ball of mass M = 0.93 Kg that is initially at rest. If the collision is elastic, determine the velocity of the two balls.​

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?