Fthe resistance remains constant and the voltage doubles, what effect will that have on the power?   a. the power will remain the same. b. the power will decrease by a factor of 2. c. the power will decrease by a factor of 4. d. the power will increase by a factor of 2. e. the power will increase by a factor of 4

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.

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.