Calculate the porosity of a sample that has a volume of 400 cubic centimeters and a pore space volume of 100 cubic centimeters.

Porosity of sample = 25%

Explanation:

Given:

Total volume = 400 cubic centimeters  

Pore space volume = 100 cubic centimeters

Find:

Porosity of sample

Computation:

Porosity of sample = [Pore space volume / Total volume]100%

Porosity of sample = [100 / 400]100%

Porosity of sample = [1/4]100%

Porosity of sample = [0.25]100

Porosity of sample = 25%

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

there is none because earth is stationary and flat.