To push a 5-kg crate up a frictionless incline angled at 40° to the horizontal, a worker exerts a force of 150 N parallel to the incline. The crate moves a distance of 10 m, (use g = 10 m/s2). 1. What work is done on the crate by the worker? (In Joules)
2. What work is done on the crate by gravity? (Joules)
3. What is the work done on the crate due to the normal force of the inclined plane surface? (Joules)
4. What is the net work done on the crate? (Joules)
5. If the crate begins at rest, what is the final speed of the crate as it is moved from the bottom to the top of the inclined plane? (m/s)

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above