Suppose you left your lawn mower out all winter, and it is very rusty. of your 250,000j of work, only 100,000j go towards cutting the lawn. what is the efficiency of the lawn mower now?

a 40%
b 0.4%
c 0.04%
d 4%

reminder: show your !

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.