A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating element with a resistance of 1.92 Ω. (a) Calculate the power (in W) consumed by the heater. W (b) How many minutes would it take to heat 1.13 kg of coffee from 20.6°C to 46.2°C with this heater? Coffee has a specific heat of

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