Question

The density of an object has the equation d= m/v. if an object has a mass of 20 g and a volume of 3.5 cm3, what is it's density?

A.0.175 G/CM3
B.70 G/CM3
C.5.71 G/CM3
D.23.5 G/CM3

Answer 1

To find the density of an object, we will use the formula for density which is \( d = \frac{m}{v} \), where:
- \(d\) represents the density of the object,
- \(m\) is the mass of the object, and
- \(v\) is the volume of the object.

Substituting the given values into the formula:
\(m = 20 \, \text{g}\) (mass of the object),
\(v = 3.5 \, \text{cm}^3\) (volume of the object),

we get:
\(d = \frac{20 \, \text{g}}{3.5 \, \text{cm}^3}\).

Dividing 20 grams by 3.5 cubic centimeters, we obtain:
\(d ≈ 5.71 \, \text{g/cm}^3\).

Therefore, the correct answer is:

C.5.71 G/CM3

Answer 2

`\mathsf{We\;know\;that : Density = (Mass\;of\;the\;Object)/(Volume\;of\;the\;Object)}`

`\mathsf{Given : Mass\;of\;the\;Object = 20\;Grams}`

`\mathsf{Given : Volume\;of\;the\;Object = 3.5\;cm^3}`

`\mathsf{\implies Density = (20)/(3.5)((g)/(cm^3))}`

`\mathsf{\implies Density = 5.71\;((g)/(cm^3))}`