A+ Answers

1. Find the energy in Joules required of lift a 2,500-g object a distance of 500cm

2. Find the magnitude of the horizontal force, in N, required to push an object a distance of 2.00 meters if the force did 0.0430J of work to perform this task.

 3. Please explain in detail why it is possible to estimate, to a good approximation, the energy derived from a slice of pizza in the body, by doing laboratory experiments, obviously the mechanisms are completely different and your answer should address this issue.