Question

For a material to float on the surface of water, the material must have a density

less than that of water (1.0 g/ml) and must not react with the water or dissolve in

it. A spherical ball has a radius of 0.50 cm and weighs 2.0 g. Will this ball float or

sink when placed in water? (Note: Volume of a sphere = 4/3(pi)(r^3)

Answer 1

Answer:

Explanation:

volume of spherical ball = 4/3 x π R³

= 4 x 3.14 x .5³ / 3

= .5233 cm³ or ml.

mass = 2 g

density = mass / volume

= 2 / .5233

= 3.8 g / ml .

So its density is more than that of water , hence it will sink into water .