If a wave has amplitude of 0.2 meters, a wavelength of 0.5 meters, and a frequency of 32 hz, at what speed is it moving?

a.6.4 m/s
b.16 m/s
c.32.5 m/s
d.32.2 m/s

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:

Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?