Calculate the potential energy of a rock with a mass of 55kg while sitting on a cliff that is 27m high

Why is a rectangular coil used in an Electric Generator instead of a circular coil?

Acar is moving east along a straight, level road at a constant velocity. Which forces form an action/reaction for the force of the tires against the road and the force of the road on the tires the weight of the car and the force of the road pushing

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him

When 560,000 is written in scientific notation, the power of 10 is

Write the different between the fall of a parachute on earth and its fall on the moon? on what condition does a body have free fall?

Venus's average distance from the sun is 0.72 AU and Saturn's is 9.54 AU. Calculate the orbital velocity of Venus and Saturn around the sun. (The mass of the sun is 1.99 X 10^30 KG. an AU is 1.50 X 10^11 M.

Caleb's parent drove him to a swim meet 208 km away. It took them 2 hours, which included a 15-minute break to refuel. What was their average driving speed?

Why is thermal energy from the Sun transferred to Earth through electromagnetic waves instead of any other type of thermal energy transfer? Electromagnetic waves can carry energy through matter. Electromagnetic waves can travel through empty space.

Why do different elements emit different colors of light

In an experiment, 108 J of work was done on a closed system. During this phase of the experiment, 79 J of heat energy was added to the system. What was the total change in the internal energy of the system?