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A stereo with a resistance of 72 Ω is connected across a potential difference of 115 V . What is the current in this device? Answer in units of A.
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Aswimmer is determined to cross a river that flows due south with a strong current. initially, the swimmer is on the west bank desiring to reach a camp directly across the river on the opposite bank. in which direction shoud the swimmer head? a. the swimmer should swim southeast. b. the swimmer should swim south. c. the swimmer shuold swim northeast. d. the swimmer should swim due north. e. the swimmer should swim due east.
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What is the change in internal energy if 20 j of heat is released from a system and the system does 50 j of work on the surroundings? a. -70 j b. 30 j c. -30 j d. 70 j
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Why does a smaller car get better gas mileage than a bigger one?
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A stereo with a resistance of 72 Ω is connected across a potential difference of 115 V . What is the...
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