Homework Statement
A 1.0--tall vertical tube is filled with 20 water. A tuning fork vibrating at 573 is held just over the top of the tube as the water is slowly drained from the bottom. At what water heights, measured from the bottom of the tube, will there be a standing wave in the tube...
The objects net force has to be known, also if the object is not accelerating then there is no net force on the object so the coefficient of friction would be equal to the force pushing the object.
Homework Statement
The power output of a car engine running at 1900 is 600 kilowatts per hour.
How much work is done per cycle if the engine's thermal efficiency is 30.0 percent
Homework Equations
thermal efficiency=w(out)/Q(hot)
The Attempt at a Solution
It wants the answer in...