Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Question

There is an 500g container made out of aluminum holding 300g of water. The Water and Aluminum have reached thermal equilibrium at 40 degrees Celsius. A 200g block of iron at a temperature of 0 degrees Celsius is later dropped into the water. Using the specific heat for water=4180J/kg/C. The specific heat for aluminum is 900 J/kg/C. The specific heat for iron is 450 J/kg/C. The final temperature of the three materials will be
degrees celsius.

The thermal energy of the water changes by
Joules. (give an amount and include a + if it increases and a - if it decreases)

The thermal energy of the aluminum changes by
Joules. (give an amount and include a + if it increases and a - if it decreases)

The thermal energy of the iron changes by
Joules. (give an amount and unit and include a + if it increases and a - if the value decreases)

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