Question

1) A solid sphere has a radius of 2 Cm and a mass of 0.05 kg. What is the relative densityof the sphere​

Answer 1

Answer:

Mass = 0.05 kg = 50 g

radius = 2 cm

volume = \frac{4}{3} \pi r^3=33.51 cm³

density = \frac{mass}{volume} = \frac{50}{33.51}=1.49 g/cm³

density of water = 1 g/cm³

Relative density = \frac{density\ of\ material}{density\ of\ water} = \frac{1.49}{1}=1.49

So relative density of sphere is 1.49.

Hope the answer will help you plz mark it as the brainliest answer ❤

Answer 2

Answer

relative density =density without units

RD=mass/volume

mass=0.05kg=50gm

vol=4/3πr³

    =4/3×22/7×2×2×2

rd=50÷4/3×22/7×8

  =1.49

Therefore,rd=1.49