A 20.4 g bullet moving directly upward at 1.03 x 10^3 m/s strikes and passes through a 4.51 kg block initially at rest. The bullet emerges from the block moving directly upward at 368. m/s. To what maximum height will the block rise above its initial position?

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600