Question

3. The diameter of a metallic ball is 4.2 cm. What is the mass of the ball, if the density
the metal is 8.9 g per cm 3 ​

Answer 1

Answer:

d=4.2

r=2.1

density=8.9

volume=4/3 pi × r× r × r

• density = mass/ volume
• mass=density x volume
• mass=8.9 ×3×22/4×7×2.1×2.1×2.1(u can calculate)