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# Sp10-6 - 9 The base of a rectangular tank measures 3 ft by...

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Unformatted text preview: 9. The base of a rectangular tank measures 3 ft by 7 ft. The tank is 10ft tall and its top is 6 feet below ground level. The tank is full of water weighing 62.4 lb/ft3. Set up the formula to find how much work it takes to empty the tank by pumping the water to ground level? DO NOT SOLVE. W. 7 tb ‘ Ni - VJ; (Gall) U) (3) 5 (\lo~°<) at,» lat. ' 0 '59" " I 2m BONUS: (5 points) Find the arc length of the curve: x=}:[\/tanzt—1dr, L 4%.?101}! 3% cl)! A z k we ‘ 661' 501W} t 1 ad" 0L - i 2 at: (W ~ 3W . rm L: S ”\),1/4+m13;40‘7 ' 1W3 ‘ ﬂ. rm _,_.__,‘ _/ :7 1 5 53,5 ‘3” ‘3 ‘3 9 1H ‘ “H uzﬁosg W1 0k, _. W3 ~—% d7 chum—57‘3“}! a“! Slit , K M/ 1 -JLn its,“ {Th _JU\ hos-El 4 all lm 3,9423%“ I,i ...
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