Question

A drop of oil measuring 0.23 cubic centimeters is spilled into a lake. The oil spread out into a circular shape having a diameter of 20 cm. Approximate the thickness of the film

Answer 1

To determine the thickness of the film, we assume the shape of the film is in a form of cylinder where the thickness is equal to the height. The volume of a cylinder is expressed as:

V = pi (r^2) h

We calculate as follows:

0.23 = pi (10^2) (h)
h = 0.0007 cm