Jimmy and Andrew are playing in the pool. Jimmy bobs up and down in the water, and Andrew bobs up and down twice as fast. a. Compare the wavelengths and frequencies for the two sets of waves.

b. Which wave property is the same for both sets of waves?

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

What will a positive and a negative charge do if they are separated from each other?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.