In this graph, a man left home a 12 noon to go for a cycle ride. the man stopped for another rest at 2 pm. He rested for one hour. Then he cycled home at a steady speed. It took him 2 hours. What was his average speed on the way back home(NOT for the entire journey).

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

A0.25 kg arrow is moving at 5 m/s and hits a 0.10 kg apple. the apple sticks to the arrow, and both move to the right together. what is their velocity?