A wave travels through a medium. The source producing the wave increases the rate at which wave pulses are generated. Which of the following statements correctly
describes what will happen?
A) The wave speed will decrease because the frequency increased.
B) The wavelength will increase because the frequency increased.
C) The wavelength will decrease because the frequency increased.
D) The wave speed will increase because the frequency increased.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".