Homework Help: Physics

Posted by Jade on Tuesday, September 18, 2007 at 7:33pm.

One cubic meter of granite has a mass of 2.70E3 kg, and one cubic meter of gold has a mass of 1.93E4 kg. Find the radius of a granite sphere whose mass is the same as that of a gold sphere of radius 1.07 cm.

Any help is appreciated!!

Physics - bobpursley, Tuesday, September 18, 2007 at 8:06pm
The masses are the same?

mass=density*volume

densitygold*PI*4/3*1.07^3 = densityrock*PI*4/3*x^3

solve for x. I will be happy to critique your work.

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