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power of a crane is 25000 watt calculate the time required by it to lift a load of 6000 kg up tp the height of 20 m
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Explain why electric current cannot exist if a current doesn't have a voltage source.
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Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?
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Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match
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power of a crane is 25000 watt calculate the time required by it to lift a load of 6000 kg up tp the...
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