Density is defined as the mass of an object divided by its volume. The volume of a regularly shaped object can be determined by a geometric formula. For example:

The volume of a cylinder of radius R, and length L, is: V = R²L.

The volume of a sphere of radius R, is: V = (⁴/₃)R³. a) Calculate the volume of a cylinder 8.20 cm long and 0.313 cm in diameter (not radius) which has a mass of 7.234 grams.

b) Calculate the density of a cylinder 8.20 cm long and 0.313 cm in diameter (not radius) which has a mass of 7.234 grams.

c) Calculate the volume of a sphere with a diameter of 1.353 cm and a mass of 4.35 grams.

d) Calculate the density of a sphere with a diameter of 1.353 cm and a mass of 4.35 grams.