plz answer quetion no (a)
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Heya User, Here is Your Answer :
Given, Radius of Sphere (r) = 0.21 cm
Given, Density of Iron = 7.8 g/m^3
Volume of Sphere =

Now, As we Know that Density = Mass per unit Volume or Mass ÷ Volume
Therefore,

Hope it would help you
Given, Radius of Sphere (r) = 0.21 cm
Given, Density of Iron = 7.8 g/m^3
Volume of Sphere =
Now, As we Know that Density = Mass per unit Volume or Mass ÷ Volume
Therefore,
Hope it would help you
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