What happens to potential energy when the object starts moving?

Can any ideal gas power cycle have a thermal efficiency greater than 55 percent when using thermal energy reservoirs at 627∘C at 17∘C? Explain. What is the maximum possible efficiency for such an engine?

A car is traveling at 52.4 km/h on a flat highway. The acceleration of gravity is 9.81 m/s2. a) If the coefficient of kinetic friction be- tween the road and the tires on a rainy day is 0.

Which is the best example of Newton's First Law of Motion? A small, lightweight ball and a large, heavy ball are dropped off the top of a very tall building. They both strike the ground at the same time.

4) The mass of Pluto is 1.31 x 1022 kg and its radius is 1.15 x 106 m. What is the acceleration of a freely-falling object at the surface of Pluto if it has no atmosphere? (G = 6.67 * 10-11 N. m2/kg2)

g Suppose Howard is pulling a bucket of bricks up along the side of a building with a rope. The bricks have a mass of 20 kg and are not touching the side of the building.

Which set of numbers best describes the displayed weights on a digital scale that shows each weight to the nearest half pound?

What is the equivalent volume occupied by three milliliters of water? three kilograms three cubic centimeters three centigrams three centimeters

Which list gives the proper sequence of energy changes that occur in a hydroelectric plant? The mechanical energy of the turbine rotates the generator parts The turbine blades capture the kinetic energy of the water Electrical energy is transferred

A locomotive is pulling 16 freight cars, each of which is loaded with the same amount of weight. The mass of each freight car (with its load) is 37,000 kg. If the train is accelerating at 0.

What is the special feature of the upper mantle?