The heating element of a coffeemaker operates at 120 V and carries a current of 7.70 A. Assuming the water absorbs all of the energy converted by the resistor, calculate how long it takes to heat 0.252 kg of water from Step 1 The energy required to raise the temperature of an amount of water of mass m from T, = 23.0°C to the boiling point, T = 100°C, is Q= mC,(AT), where the specific heat of water c= 4186 J/kg - °C. We have Q = mc(AT) = m c(T - T) 0.252 kg (4186 /kg · °c)(77, 77 °c) 0.252 - 0.81225 0.812 x 10 ) Step 2 The rate P at which the heating element converts electrical potential energy into the internal energy of the water is P = (AV)I = ( J/s.

The heating element of a coffeemaker operates at 120 V and carries a current of 7.70 A. Assuming the water absorbs all of the energy converted by the resistor, calculate how long it takes to heat 0.252 kg of water from Step 1 The energy required to raise the temperature of an amount of water of mass m from T, = 23.0°C to the boiling point, T = 100°C, is Q= mC,(AT), where the specific heat of water c= 4186 J/kg - °C. We have Q = mc(AT) = m c(T - T) 0.252 kg (4186 /kg · °c)(77, 77 °c) 0.252 - 0.81225 0.812 x 10 ) Step 2 The rate P at which the heating element converts electrical potential energy into the internal energy of the water is P = (AV)I = ( J/s.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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