- #1
Fittleroni
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Homework Statement
* A 14.0kg block of metal measuring 12cm x 10cm x 10cm is suspended from a scale and immersed in water. The 12.0 cm dimension is vertical and the top of the block is 5.05 cm below the surface of the water.
(a) What are the forces acting on the top and on the bottom of the block? (Use P0 = 1.0130 105 N/m2.)
Ftop =
Fbottom =
(b) What is the reading of the spring scale?
(c) Find the difference between the forces on the bottom and the top of the block.
Homework Equations
*P = Po + pgh ( for part A)
And for part (c) I know the difference is equal to the buoyant force.
The Attempt at a Solution
*Po = 1.0130 x 10^5
p = m/v,
v= .10 x .10 x .12 = 0.0012
m = 14
Therefore p = 11666
g= 9.81
h = 0.1
Therefore P = 112744
F=PA
A(top)=0.1
Ftop= 11274 x 0.1 = 11274
Which is wrong, so after using up all my tries for my web assign, I don't know where to go. I cannot answer for Fbottom using that formula because it is not correct. I think the problem may lie in the numbers I am using for h, and A.