SOLUTION: Inner radius of a metallic tube of density log per cubic cm is 7cm. The thickness of tuba is 0.35cm. Find the weight of tube if it is of length is 30cm

Algebra ->  Volume -> SOLUTION: Inner radius of a metallic tube of density log per cubic cm is 7cm. The thickness of tuba is 0.35cm. Find the weight of tube if it is of length is 30cm      Log On


   

Question 1102202: Inner radius of a metallic tube of density log per cubic cm is 7cm. The thickness of tuba is 0.35cm. Find the weight of tube if it is of length is 30cm
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Your density is log per cubic cm.
Is that supposed to be 10 g/cc?
I'll just use rho in the formula and you can fill it in.
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Find the volume.
V=pi%28%287%2B.35%29%5E2-7%5E2%29%2A30
V=30pi%287.35%5E2-49%29
Then multiply by the density to get the mass.
m=rho%2AV
m=30%2Arho%2Api%2A%2854.0225-49%29
Work that out for the mass of the tube.