How do you find the mass of a sphere with a radius of 4.7 mm and a length of 3.9mm?

Answer 1

First and foremost, you must know the density. Mass is the product of volume

and density (m=vd). Also, a sphere is specified by its radius alone. The "length"

of a sphere should represent nothing more than its diameter, which is twice its

radius.

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Answer #2:

First of all, that's no sphere, since spheres don't have 'length'.

Next . . . As written, the question has no answer, simply because the mass of

a sphere doesn't depend on its size. A hundred spheres can easily all have the

same size but a hundred different masses.