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 g per cm?
Answers
Answered by
0
Step-by-step explanation:
345.231 ...................
Answered by
1
Answer:
345.39gm
Step-by-step explanation:
to find mass
we to find volume of sphere = 4/3πr^3
diameter = 4.2/2
r= 2.1
(4×3.14×2.1×2
1×2.1) / 3
= 38.808 cm^3
density = mass / volume
8.9 = mass / 38.808
mass = density × volume
mass = 8.9×38.808
mass = 345.39 g
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