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Homework Statement
A cylinder C1 has density D1, and C2 has density 2D1. The height of C1 is 3 times as large as height of C2, and the radius of C2 is 4 times as large as the radius of C1. Find the ratio of the mass of C1 to C2.
Homework Equations
Density=Mass/Volume
Volume of Cylinder=(pi) R^2(L)
The Attempt at a Solution
Volume of C1=(pi)R^2(3H)
Volume of C2=(pi)(4R)^2(H)
Mass of 1= D1(pi)(R)^2(3H)
Mass of 2=2D1(pi)(4R)^2(H)
SO mass of C1 to C2 would be {D1(pi)(R)^2(3H)}/{2D1(pi)(4R)^2(H)}
Answer I came up with was 3/32. Is this right?