Question

Find the volume if density of a substance is 0.5 g/cm³ and mass is 30g.

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Answer 1

Explanation:

Given, mass of substance, m=50g;

volume, V=20cm3; density, ρ=?

The density of substance given is 

d=Vm=20cm350g=2.5gcm−3

Hence the density of the substance is greater than the density of water. Hence the weight acting downwards Vdg is greater than the buoyant force acting upwards Vρwaterg.

Hence the substance will sink in water

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Answer 2

Answer:

Since , Density = Mass / Volume

ATQ,

0.5 = 30/ V

0.5V = 30

V = 30/0.5

V = 60cm³ Ans

Hence, volume is 60cm³

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