HELP ASAP Define friction. When you are pushing a box across the floor and it is moving to the left, in which direction is friction being applied.

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost