Agirl throws a ball of mass 0.8 kg against a wall. the ball strikes the wall horizontally with a speed of 11 m/s, and it bounces back with this same speed. the ball is in contact with the wall 0.05 s. what is the average force exerted on the wall by the ball?

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?