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Physics, 21.06.2019 22:30
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
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This is for my 8th grade science class, i really don’t understand. can someone me? , lol.
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Physics, 22.06.2019 12:00
Explain why electric current cannot exist if a current doesn't have a voltage source.
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Amicrowave oven operates at 2.00 ghz . what is the wavelength of the radiation produced by this appl...
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