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A 9.0 kg block of metal is suspended from a scale and immersed in water, as in the figure below. The dimensions of

the block are 12.0 cm x 11.1 cm x 11.1 cm. The 12.0 cm dimension is vertical, and the top of the block is 5.00 cm below the surface of the water.



(A) What are the forces exerted by the water on the top and bottom of the block? Take P0 =

1.0130 x 105 N/m2.

F top (N)

F bottom (N)

(B) What is the reading of the spring scale? (N)
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Added Thu, 06 Aug '15
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p0A + phgA

=F

=(1.013*10^5 +1000*9.81*17/100)11.1*11.1/10000=1268.6650317N
=force at bottom

(1.013*10^5 +1000*9.81*5/100)11.1*11.1/10000=1254.1607505N

=force on top

mg=90N

t=mg-b=74.5 N
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Added Thu, 06 Aug '15
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