Describe what type of interaction is being shown and explain what causes this type of interaction. Finally, predict how this model might look differently if sound,
instead of light, were moving from air into water. Justify your prediction.

When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.