Question

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1) A solid sphere has a radius of 2 cm and a mass of 0.05 kg. what is the relative density of the sphere

Answer 1

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reletive 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

Answer 2

that is the answer
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