Asked by Ernan

A cylindrical log of uniform density and radius 20.0
cm floats so that the vertical distance from the water
line to the top of the log is 8.00 cm. What is the density
of the log? (Hint: draw a good picture of the circular
end of the log.)

Answers

Answered by Henry

Dia. = 2 * 20 = 40 cm.
hb = height below the surface.
Dw = 1g/cm^3 = The density of water.


hb = Dl/Dw * h = 40-8 = 32 cm.
Dl/1 * 40 = 32, Dl = 0.8g/cm^3.
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