A0.50 kg puck is sliding on a horizontal shuffleboard court is slowed to rest by a frictional force of 1.2 newtons. what is the coefficient of kinetic friction between the puck and the surface of the shuffleboard court?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

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 heliocentric and the geocentric models of the solar system included these central principles