You are trying to design a spring gun that is able to launch a 7.0 g marble to avertical height of 22 m (measured from the relaxed position of the spring ). The specifications for the gun state that when it is loaded, the spring will be compressed 8.0 cm from its relaxed length. (When the gun is fired, the ball is released when the spring reaches its relaxed length) What should the spring constant k be ?