1. The diagram shows 2 identical charged particles. How does the potential energy and the force of repulsion change as the charges are brought closer together? 2. For the positions labeled on the image, list in order from highest to lowest the potential energy of the roller coaster. How is the kinetic energy of the roller coaster related to these values?

3. Consider the motion and size of the two vehicles headed for each other on the road. Compare the kinetic energy of the vehicles.

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.

Ajoint produces movement when its angle decreases. which type of movement is it?

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.