Physics, 10.05.2021 16:30 davelopez979
Why do you think electromagnets are central to electric motors and generators?
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Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.
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The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?
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Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?
Answers: 1
Why do you think electromagnets are central to electric motors and generators?...
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