11. Josh weighs 600 Newtons. He runs 50 meters down the track in 7 seconds. How much work did he do? 12. How much power did Josh, from question 11, create?

13. How much force would Trinity have to use if she does 600 J of work, on a car, to push it 3 meters across the parking lot?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.