Amicrowave is rated at 750 watts. how long will it take the microwave to do 5700 j of work on a cup of water? assume 100% efficiency.

a)
0.13s

b)
2s

c)
7.6s

d)
4,275,000 s

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.