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Molodets [167]
2 years ago
8

The density of copper is 9.86 g/cm3.

Mathematics
2 answers:
eimsori [14]2 years ago
6 0

Answer:

1.479 kg

Step-by-step explanation:

density = mass / volume

9.86 g/cm3 = mass / (3 x 10 x 5)

9.86 = mass / 150

9.86 x 150 = 1479 g

1479 / 1000 = 1.479kg

omeli [17]2 years ago
6 0

Answer:

The mass of copper cuboid is 1479g.

Step-by-step explanation:

First you have to find the volume od cuboid using the formula V = length×width×height :

v = length \times width \times height

let \: length = 5 \\ let \: width = 10 \\ let \: height = 3

v = 5 \times 10 \times 3

v = 150 {cm}^{3}

Then you have to substitute the volume into the formula of density, ρ = mass/volume :

ρ = mass \times volume

let \: density = 9.86 \\ let \: volume = 150

9.86 =  \frac{mass}{150}

mass = 9.86 \times 150

mass = 1479g

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