
Francisco E. answered 07/12/14
Tutor
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Francisco; Civil Engineering, Math., Science, Spanish, Computers.
The volume of the tank will be:
∏r2X12 ft3 = 603.20 ft3
Work is the act of changing the energy of a particle, body or system, in our case is force times space so the total weight is
40X603.20 = 24128 lb
The space will be 6 ft
and the work is
24128 X 6 = 144768 ft-lbf =
196276 Joules.
Francisco E.
07/18/14