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A small electric immersion heater is used to heat 87 g of water for a cup of instant coffee. The heater is labeled 120
A small electric immersion heater is used to heat 87 g of water for a cup of instant coffee. The heater is labeled "120 watts" (it converts electrical energy to thermal energy at this rate). Calculate the time required to bring all this water from 21C to 100C, ignoring any heat losses. (The specific heat of water is 4186 J/kg-K.)
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We can use the following heat transfer formula to determine how long it will take to heat the water ...
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Fundamentals of Physics
Authors: Jearl Walker, Halliday Resnick
8th Extended edition
471758019, 978-0471758013
