What is the unit for electrical power? volt (V) joule (J) kilowatt-hour (kWh) watt (W)

What is the period of a wave if the frequency is? 5 Hz

A steel beam is rotated in a horizontal plane to provide the centripetal acceleration for training pilots. If the pilot sits 2.

An atom containing an equal number of protons and electrons is called a what atom

If a 66.0-kg person stands with both feet on the same step, what is the gravitational potential energy of this person on the first step of the flight of stairs relative to the same person standing at the bottom of the stairs?

If you wished to warm 100 kg of water by 15 degrees celsius for your bath, how much heat would be required? (give your answer in calories and joules)

Which is a result of using a machine? The amount of work that is done is increased. The work input is less than the work output. Both the force and the distance through which it acts increase.

What is the difference between electromagnet and electromagnetism?

Which of the following can be determined by studying the spectrum of a star? the chemicals in the atmosphere of the star the motion of the star the temperature of the atmosphere of the star all of the above

How do I find the specific heat of an object?

In order to be considered scientific, evidence must be: