Question

An aluminum cylinder has a diameter of 3 cm and height of 4 cm. It is underwater but connected to a string that holds the cylinder off the bottom of the container of water.

The cylinder is stationary. Calculate the tension in the string in N.

The density of aluminum is 2.7x10^{3} kg/m^{3},
and water is 1.0x10^{3} kg/m^{3}.

Answer #1

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WOODEN CYLINDER
VALUES
mass (kg)
0.0354
weight (N)
0.34692
length (m)
0.290
diameter (m)
0.0163
volume (m3)
0.0002086
density (kg/m3)
169.7
WATER
VALUES
density (kg/m3)
1000
Vi (m3)
180 ml
V (m3)
213 ml
?V (m3)
33 ml
weight of displaced water (N)
0.3234
BRASS CYLINDER
VALUES
weight (N)
2.002
length (m)
0.0605
diameter (m)
0.0192
radius (m)
0.0095
volume (m3)
0.00001751
WA (N)
1.765
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VALUES
weight (N)
0.621
length (m)
0.0605
diameter (m)
0.0192
radius (m)
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