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Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
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Physics, 21.06.2019 23:30
To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?
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Physics, 22.06.2019 00:00
True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.
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The first law of thermodynamics can be given as...
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