A 0.00287 C charge is 6.52 m from a -0.00555 C charge. What is their
electric potential energy? Include
the correct sign (+ or -).
(Unit = J)

Rohit is trying to tune an instrument

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

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