The diameter of a metabolic ball is 14cm. It has a mass 40g. Find 8ts density.
Share
The diameter of a metabolic ball is 14cm. It has a mass 40g. Find 8ts density.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Explanation:
Given,
diameter of the metallic ball =4.2 m
We know,
radius =
2
diameter
∴ r=
2
4.2
cm=2.1 cm
Density =
volume
Mass
∴ Mass = Density×volume
⇒ 8.99 cm
2
×volume
volume of a metallic ball =
3
4
×π×r
3
=
3
4
×2.1×2.1×2.1 cm
3
∴ Mass=8.99×
3
4
×π2.1×2.1×2.1 cm
3
=345.077 gm
Answer:
This is the correct answer.
Hope it help you.