SHM, Waves, Thermo, E&M Practice Problem Workbook
SHM, Waves, Thermo, E&M Practice Problem Workbook
SHM, Waves, Thermo, E&M Practice Problem Workbook
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MECHANICS PRACTICE PROBLEM SETS 28<br />
A<br />
B<br />
10. A very thin square steel plate, 10 cm on a side, is heated in a blacksmith’s forge to a<br />
temperature of 800°C. If the emissivity is 0.60, what is the total rate of radiation of<br />
energy<br />
Answer: 900 W<br />
a. If thin square steel plate is put into a room that is 30°C, what is the net flow of<br />
heat by radiation<br />
Answer: 897 W<br />
C<br />
11. The intensity of the radiation from three objects verse wavelengths are plotted as<br />
shown. Use the graphs to find the temperature of each object.<br />
Answer: A = ~12000 K, B = ~6000 K, C = ~3000 K<br />
Gamzon & Gregorian-Michaelsen 6/13/12
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