Water flows into a swimming pool at the rate of 12 gal/min. The pool is 16 ft wide, 32 ft long and 6.0 ft deep. How long does it take to fill? (1 U.S. gallon = 231 cubic inches)
a. 32 hours
c. 48 hours
b. 64 hours
d. 24 hours
A
You might also like to view...
The modern view of our place in the universe suggests that life elsewhere may be
A) this view gives us no clue of the likelihood of life elsewhere B) rare C) common D) at the center of another, parallel universe
Elizabeth lifts a 10 N book from the floor to the table, a height of 2 m. How much work does Elizabeth do?
A) 20 watts B) 5 joules C) 20 joules D) Elizabeth does zero work E) 5 watts
Find Brewster's angle for light in air that is reflected from the top of a water surface. The index of refraction of the water is 1.33
A) 53.1° B) 36.9° C) 56.3° D) 60.2° E) 90.0°
The end of the cutting cord on a gas-powered weed cutter is 0.21 m in length. If the motor rotates at the rate of 20 rev/s, what is the tangential speed of the end of the cord?
a. 13 m/s b. 4.2 m/s c. 26 m/s d. 2.7 m/s