Can you help me? Must be on paper.

Question Pre-3: Assume a spring has an unstretched length x.. Write an expression for the elastic potential energy of the spring in terms of the position of the end of the spring x and its spring constant k. Question Pre-4: Describe how you will measure the spring constant k in Section 2.2 Measurement of the Spring Constant.GTA Name Lab 6: Energy PHYS 2305 Pre-lab Assignment Question Pre-1: In Section 1.3, you will consider the gravitational potential, kinetic, and the total mechanical energy of a cart moving down an inclined ramp in a cart-Earth system. (Refer to Figure 6. 2). Define the gravitational potential energy to be zero when the cart is at the bottom of the ramp. Write an expression for the gravitational potential energy of the cart- Earth system in terms of the cart's mass m, the cart's position along the inclined ramp x, and the angle of the ramp 0. Question Pre-2: In the situation described in Question Pre-1, how will the kinetic energy, gravitational potential energy, and total mechanical energy behave over time as the cart rolls down the inclined ramp? (For each type of energy, answer if it decreases, increases, or stays the same.) Explain. Lab 6: Energy