(a) Indicate whether the claim is correct or incorrect and explain why. i. What type of energy does a compressed spring have? ii. When the cart is released the energy from part I is converted into what type of energy? iii. Write a conservation of mechanical energy equation for this scenario. iv. Use the equation in part iii to explain which cart will end up faster. v. Was the student correct?

7. The cart, in the diagram below, travels .80 m down the ramp with uniform acceleration in 1.5 seconds. The initial velocity(v.) is 0 m/s. You must show work. Determine the following. If answer requires a calculation, you must show work. The initial velocity(v.) is 0 m/s. a. Average Velocity b. Acceleration c. The dots in the strips below represent the position of the cart as it rolls down the .80- meter-long ramp. The time intervals between the dots are equal. Which of the strips best represents the motion of the cart down the ramp? Justify your choice. d. Which two strips represent an object moving at constant velocity? Justify your answer.

Help please

A spring with a spring constant of 366 N/m is compressed so it contains 18.7392 joules of elastic potential energy. A. How much is the spring compressed by? __________meters

7. John has 200 Joules of potential energy when he is standing on a diving board. a. Find his mechanical energy. b. John jumps off of the diving board. What is his potential energy when he is halfway to the water? C. What is his mechanical energy when he lands in the water?