I really understand most of the question, just having trouble with one part, so I am going to try to sum it up. if you need more info to clarify please let me know...
background...
nielson media research provides two measures of television viewing audience (in this case for the world...
Question: The loaded cab of an elevator has a mass of 3.0 103 kg and moves 191 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab? answer is in kW
hint provided : Power is the rate at which work is done. The power of a force is the...
Here is the question:
The only force acting on a 2.9 kg body as it moves along the positive x-axis has an x component Fx = - 6x N, where x is in meters. The velocity of the body at x = 3.0 m is 8.0 m/s.
a)What is the velocity of the body at x = 4.0 m?
and
b) At what positive value...