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9 votes
9 votes
the diameter of a metallic ball is 4.2 cm . What is the mass of the ball , if the density of the metal is 8.9 gram per centimetre cube ​

User Hyades
by
2.7k points

2 Answers

18 votes
18 votes

I will not tell you the exact answer, but plug the radius(2.1) into the sphere equation and then use the mass formula to caculate the mass(you already have the density)

User Chillybin
by
2.9k points
16 votes
16 votes

Answer:

109.8972π or around 345.2 grams

Explanation:

find volume

(4/3)π(2.1)^3=12.348π cm cubed

12.348π*8.9=109.8972π

User OpherV
by
3.0k points
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