A: transformers work with either ac or dc electricity. true/false
b: power companies use hig...
A: transformers work with either ac or dc electricity. true/false
b: power companies use high voltages to reduce power loss over long transmission distances. true/false
c: a(n) uses electromagnetic induction to increase or decrease voltage.
d: materials that lose all electrical resistance at low temperatures are known as and are ideal for constructing powerful electromagnets.
e: an electric device that uses an electromagnet to open and close a switch is a(n)
Answers: 1
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Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
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Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
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What is the relationship between wavelength of light and the quantity of energy per photon?
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