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1i) A rectangular tank that is 4 feet long, 8 feet wide and 15 feet deep is filled with a heavy liquid that weighs 90 pounds per cubic foot. In each...
1i) A rectangular tank that is 4 feet long, 8 feet wide and 15 feet deep is filled with a heavy liquid that weighs 90 pounds per cubic foot. In each part below, assume that the tank is initially full. Your answers must include the correct units. (You may enter lbf or lb*ft for ft-lb.) (a) How much work is done pumping all of the liquid out over the top of the tank?(b) How much work is done pumping all of the liquid out of a spout 3 feet above the top of the tank?(c) How much work is done pumping two-thirds of the liquid out over the top of the tank?(d) How much work is done pumping two-thirds of the liquid out of a spout 3 feet above the top of the tank? 1ii) A bucket that weighs 3.2 pounds and a rope of negligible weight are used to draw water from a well that is 77 feet deep. The bucket is filled with 40 pounds of water and is pulled up at a rate of 1.9 feet per second, but water leaks out of a hole in the bucket at a rate of 0.2 pounds per second. Find the work done pulling the bucket to the top of the well. Your answer must include the correct units. (You may enter lbf or lb*ft for ft-lb.) Work =___________________1iii) A cable that weighs 3 pounds per foot is used to lift 710 pounds of coal up a mineshaft that is 626 feet deep. Find how much work was done. Your answer must include the correct units. (You may enter lbf or lb*ft for ft-lb.) Work = _____________________
Q. 1i) A rectangular tank that is 4 feet long, 8 feet wide and 15 feet deep is filled with a heavyliquid that weighs 90 pounds per cubic foot. In each part below, assume that the tank is...