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4 years ago

9

The density of an object is defined as its mass divided by its volume. Suppose the mass and volume of a rock are measured to be

8 g and 2.8325 cm3.

2 answers:

Lunna [17]4 years ago

5 0

Answer:

2824.36011 kg/m³

Explanation:

The missing statement is: <em>determine the rocks density in kg/m³</em>

- Data

mass of the rock, m = 8 g

volume of the rock, V = 2.8325 cm³

- Unit conversions

1000 g are equivalent to 1 kg, then 8 g are equivalent to:

1000 g / 8 g = 1 kg / x kg

x = 8/1000 = 0.008 kg

1,000,000 cm³ are equivalent to 1 m³, then 2.8325 cm³ are equivalent to:

1,000,000 cm³ / 2.8325 cm³ = 1 m³ / x m³

x = 2.8325/1,000,000 = 0.0000028325 m³

- Density calculation

Density = m/V

Density = 0.008/0.0000028325

Density = 2824.36011 kg/m³

kicyunya [14]4 years ago

3 0

Answer:

Density of the rock = 2.82436 g/cm³

Explanation:

We are given that:

$density = \frac{mass}{volume}$

We are also given that:

mass of rock = 8 grams

volume of rock = 2.8325 cm³

Substitute with the given values in the equation to get the density as follows:

$Density = \frac{8}{2.8325} = 2.82436$ g/cm³

Hope this helps :)

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