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katrin [286]
3 years ago
11

The specific heat of water is 4.2 J/g • °C. How much heat is required to raise the temperature of 100 g of water by 5°C? *

Physics
1 answer:
Svetach [21]3 years ago
7 0

Answer:

2100 J

Explanation:

The heat required to increase the temperature of a substance is given by

Q=mC\Delta T

where

m is the mass of the substance

C is its specific heat capacity

\Delta T is its change in temperature

For the water in this problem, we have:

m = 100 g is its mass

C = 4.2 J/g • °C is the specific heat capacity

\Delta T=5^{\circ}C is the increase in temperature

So, the amount of heat needed is:

Q=(100)(4.2)(5)=2100 J

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Some drops a ball off of the top of a 125-m-tall building. In this prob-lem, you will be solving for the time it takes the ball
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