What heavenly body did Galileo first study

A book with a mass of 1.2 kg sits on a bookshelf. If it has a gravitational potential energy of 50 J, how high is the shelf? The acceleration of gravity is 9.8 m/s2 A. 1.2 m B. 4.3 m C. 5.9 D. 2.7 m

When you hit a nail into a board using a hammer the head of the nail gets warm. In terms of kinetic and thermal energy describe why you think this happens?

A banked circular highway curve is designed for traffic moving at 57 km/h. The radius of the curve is 216 m. Traffic is moving along the highway at 43 km/h on a rainy day.

The electroscope is an apparatus used to detect electric charge. The electroscope consists of a plate, a support and a free to rotate needle all made of metal.

A net force of 200 N acts on a 100-kg boulder, and a force of the same magnitude acts on a 130-g pebble during the same amount of time. Which object has the greatest value for each of these quantities?

Are you willing to do a project?

The first stage in the GAS model of stress is a. analyzing a stressor b. adaptation c. resistance d. alarm and mobilization

You drop a rock down a well that is 31 m deep. How long does it take the rock to hit the bottom of the well?

the power in an electrical circuit is given by the equation p=lr, where l is the current flowing through the circuit and r is the resistance of the circuit. what is the power in a circuit that has a current of 12 amps and a resistance of 100 ohms?

An astronaunt in a space capsule orbiting the earth experience weightlessness. why?