The amplitude of a wave is dependent upon what?
a. the amount of energy carried by the wave
b. the maximum displacement from the rest position
c. neither a nor b
d. both a and b

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)

Aswimmer is determined to cross a river that flows due south with a strong current. initially, the swimmer is on the west bank desiring to reach a camp directly across the river on the opposite bank. in which direction shoud the swimmer head? a. the swimmer should swim southeast. b. the swimmer should swim south. c. the swimmer shuold swim northeast. d. the swimmer should swim due north. e. the swimmer should swim due east.