Question

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 ​

Answer 1

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)

Answer 2

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