Physics, 19.11.2020 22:50 jackie36390
Which statement accurately describes current electricity? A. Positively charged particles build up on an object's surface. B. Negatively charged particles build up on an object's surface. C. Positively charged particles move from one point to another. D. Negatively charged particles move from one point to another.
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A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
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Which statement accurately describes current electricity?
A. Positively charged particles build up...
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