Question

If a ball of unknown material with a volume if 2.34cm^3 and a mass if 1.7 g was used, what radius and density would it possess

Answer 1

Radius = 0.8235 cm

Density = 0.7265 g/mL

Step-by-step explanation:

Given that the volume = 2.34 cm³

The volume of the sphere =
`\frac {4}{3}* \pi* r^3`

Thus,

`\frac {4}{3}* \pi* r^3=2.34\ cm^3`

`\frac {4}{3}* \frac {22}{7}* r^3=2.34\ cm^3`

`r^3=0.5584\ cm^3`

r = 0.8235 cm

Volume = 2.34 cm³ = 2.34 mL (1 cm³ = 1 mL)

Mass = 1.7 g

Density = Mass/ Volume = 1.7 g / 2.34 mL = 0.7265 g/mL