Question

I need the ans for 5 th question from physics

Answer 1

Radius = 0.18 cm

Density = 2.7 g/cc

Volume of the sphere = 4/3πr³

V = 4/3*0.18*0.18*0.18*22/7

V = 0.024 cc

Therefore mass,

Density = mass/volume

2.7 = m / 0.024

M = 0.0648 g

 

I hope it helps………..

Answer 2

Radius = 0.18 cm

Density = 2.7 g/cc

Volume of the sphere = 4/3πr³

= 4/3 x 22/7 x 0.18 x 0.18 x 0.18

V = 0.024 cc

so,

Density = mass/volume

2.7 = m / 0.024

m = 0.0648 g