University Physics Volume 2
18th Edition
ISBN: 9781938168161
Author: OpenStax
Publisher: OpenStax
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Chapter 9, Problem 93CP
A physics student uses a 115.00-V immersion heater to heat 400.00 grams (almost two cups) of water for herbal tea. During the two minutes it takes the water to heat, the physics student becomes bored and decides to figure our the resistance of the heater. The student starts with the assumption that the water is initially at the temperature of the room
The specific heat of the water is
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An immersion heater used to boil water for a single cup of tea plugs into a 120 V outlet and is rated at 500 W . Suppose your super-size, super-insulated tea mug contains 400 g of water at a temperature of 18 ∘C. You can ignore the energy needed to raise the temperature of the mug and the heater itself.
What is the resistance of the heater?
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Chapter 9 Solutions
University Physics Volume 2
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