Which is not an not the measure of the frequency of a wave?

a. 0.10 s per wave

b. 5 hertz

c. 2 cycles per second

d. 4 waves per second

Natural forces that can alter ecosystems include seasons and climate changes. t or f

The force will determine the acceleration.

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.