Homework Help: physics

Posted by sarah on Saturday, January 26, 2013 at 12:36pm.

A piece of pipe has an outer radius of 4.6 cm, an inner radius of 2.8 cm, and length of 35 cm. What is the mass of this pipe? Assume its density is 8.3 g/cm3. Answer in units of k

physics - Elena, Saturday, January 26, 2013 at 2:52pm
V=V1-V2= πR²h-πr² h=πh(R²-r²)
m=ρV=ρπh(R²-r²)

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