A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating element with a resistance of 1.42 0. HINT Apply the expression for electrical power, remembering the energy required to heat the coffee is Q = mcAT. Click the hint button again to remove this hint. (a) Calculate the power (in W) consumed by the heater. W (b) How many minutes would it take to heat 1.33 kg of coffee from 21.1°C to 48.2°C with this heater? Coffee has a specific J heat of 4184 Neglect any energy losses to the environment. (kg. °C) min
A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating element with a resistance of 1.42 0. HINT Apply the expression for electrical power, remembering the energy required to heat the coffee is Q = mcAT. Click the hint button again to remove this hint. (a) Calculate the power (in W) consumed by the heater. W (b) How many minutes would it take to heat 1.33 kg of coffee from 21.1°C to 48.2°C with this heater? Coffee has a specific J heat of 4184 Neglect any energy losses to the environment. (kg. °C) min
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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