Question

the diameter of lead ball is 2.1cm the density of lead used is 11.34g/cm^3 what is the weight of the ball​

Answer 1

Answer:

Diameter of metallic ball =4.2cm

∴ Radius of metallic ball =2.1cm

Volume of metallic ball =  3 4  πr  3 =  3 4   ×π(2.1)  3  =38.81cm  3

 ⟹ Mass of metallic ball =2.5g/cm  3 ×38.81cm  

3 =97.025g≈97g