Styrofoam has a density of 300kg/m3. what is the maximum mass that can hang without sinking from a 20.0 cm -diameter styrofoam sphere in water?

1.257 kilograms is the maximum mass that can hang without sinking.

Explanation:

Mass of styrofoam = m

Volume of the sphere = V

V =

Diameter of the sphere = d = 20.0 cm

Radius of the of sphere = r = 0.5 d = 10.0 cm = 0.1 m ( 1 cm = 0.01 m)

Density of the sphere  =

Weight of the styrofoam sphere ,

1.257 kilograms is the maximum mass that can hang without sinking.

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physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."