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Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?
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Lucy needs to lift a crate to a shelf 20 m high. she does 12,000 j of work on a machine to her. the...
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