Radio stations identify themselves by their position on the radio dial such as 90.1 and 93.3. this number is based on the number of waves or cycles that pass a fixed point in a specific unit of time.  to which property of a wave does this identification number refer?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped