The net forced experienced by a box is 500 N. If the force of friction opposing the motion is 100 N, what is the force exerted by a peron pushing on the box?

In a system, when potential energy decreases, then entropy also decreases. true false

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two