Master the ASVAB by Scott Ostrow

Master the ASVAB by Scott Ostrow

Author:Scott Ostrow
Language: eng
Format: epub
ISBN: 978-0-7689-3954-5
Publisher: Peterson's
Published: 2014-05-28T04:00:00+00:00

To get this idea, follow this problem. A tank for holding fresh water is 10 feet long, 6 feet wide, and 4 feet deep. It holds, therefore, 10 × 6 × 4, or 240 cubic feet of water. Each cubic foot of water weighs about 62.5 pounds. The total force tending to push the bottom out of the tank is equal to the weight of the water—240 × 62.5, or 15,000 lb. What is the pressure on the bottom? Since the weight is evenly distributed on the bottom, you apply the formula and substitute the proper values for F and A. In this case, F = 15,000 lb., and the area of the bottom in square inches is 10 × 6 × 144, since 144 sq. in. = 1 sq. ft.


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