Author Question: For a furnace to provide 50,000 Btu/hr of thermal energy to a living space, what should the rate of ... (Read 32 times)

tatyanajohnson · **on:** Jul 28, 2018

For a furnace to provide 50,000 Btu/hr of thermal energy to a living space, what should the rate of heat supplied by the fuel if the furnace efficiency is 75?
a. 25,000 b. 37,000 c. 50,000 d. 67,000 e. 125,000 Btu/hr

Question 2

A rifle is aimed horizontally toward the center of a target 0.10 km away, but the bullet strikes 10 cm below the center. Calculate the velocity of the bullet just as it emerges from the rifle.