Author Question: For a cube-shaped room, 10 ft on a side, what will be the rate of heat loss if the R-value is 4 ... (Read 83 times)

james · **on:** Jul 28, 2018

For a cube-shaped room, 10 ft on a side, what will be the rate of heat loss if the R-value is 4 ft2-F hr/Btu for each side and the T is 50 F?
a. 800 b. 1200 c. 5000 d. 7500 e. 12,000 Btu/hr

Question 2

A book is placed on a chair. Then a videocassette is placed on the book. The floor exerts a normal force
a. on all three. b. only on the book.
c. only on the chair.
d. upwards on the chair and downwards on the book.
e. only on the objects that you have defined to be part of the system.