Two students are helping their coach move equipment to the work room. Use the student's data below to answer the following two questions at the bottom
• Student A moves 200 N of boxes 25 meters in 10 seconds,
• Student B moves 80 N of boxes 62.5 meters in 22 seconds,
1. Which student does more work?
2. Which student has the greater power output?

Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

The least penetrating form of radiation is