Answer the following questions to compare the amount of work that was done and the power used by each of the workers pictured above. Each worker moved one barrel to the platform. The worker on the left rolled the barrel up the inclined plane and took twice the time that it took for the worker on the right to simply lift the barrel to the platform. Assume that the barrels all have the same mass. 1. Which worker did more work? Explain.
2. Which worker used more power? Explain.

they should be similar or the same

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

which three statements are true about all alloys?