Question

The density of a cylinder made from copper is 9000 kg/m³. The volume of the cylinder is 75 cm³.

a) Calculate the mass of the cylinder.
b) The gravitational field strength is 10 N/kg. Calculate the weight of the Cylinder.​

Answer 1

Answer:

the mass of the cylinder is 9000 * 75 = 675000kg

Explanation:

Answer 2

Answer:

a: 0.675kg

b: 6.75N

Explanation:

Density = 9000 kg/m^3

Volume = 75cm^3

To find the mass of the cylinder, you first have to convert 75 cm^3 to m^3 (converting cm^3 to m^3 as density is per m^3,) so the volume would be 0.000075 m^3. We then times this by 9000kg (remember mass = volume x density) and so we get 0.675kg.

The formula of weight is Weight = Mass x Gravitational force and so we just substitute.

Weight = 0.675x10

Weight = 6.75 N