I require assistance with these practice problems. All directions are stated on the paper, so please submit thorough responses based on the worksheet. Overall I need to be able to understand your work, so I highly suggest you do not make it anymore complicated for my sake. Thank you.

each situation shown below: Show your choice of system, unless it is specified for you. * *Always include the Earth in your system. The problem WILL state whether there's friction or not. . . Sketch an energy bar graph for the initial situation. Then complete the analysis with final energy bar graphs and energy flow diagram. a. (KE: Kinetic Energy), (PE,: Grav. Potential Energy), (PEsp:: Elastic/Spring Energy), (Edis: Non- Mechanic/Heat Energy) Set up the equations (there should be 3 lines of equations) a. A moving car, moving up a loop. Assume no friction. Initial Energy Final Energy Energy Flow Final KE PE, PESp Diagram KE PEg PEsp Ediss Initial Equation Setup (start with the conservation of energy): b. A person pushes a stalled car to get it to the service station. Assume no friction. Initial Energy Final Energy Energy Flow Initial Final KE PEg PESp Diagram KE PEg PESp Ediss Equation Setup (start with the conservation of energy): C. A crate, starting at rest, is propelled up a hill by a tightly coiled spring. Assume friction. Initial Energy Final Energy Energy Flow Initial Final KE PEg PESp Diagram KE PEg PEsp Ediss h=0 V=0 Equation Setup (start with the conservation of energy)