a sphere has a hollow portion which is one third of its total volume. it floats in water with four fifth of its volume immersed. the specific gravity of its material is
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Answer:
The specific gravity of the material is 2.67
Explanation:
Density of body = fraction of body in liquid x density of water
=( 1 — 1/3) x 1 = 2/3
Density of liquid = density of body / fraction of body in liquid
= 2 / 3 ÷ 1 / 4
= 2 x 4 / 3 x 1
= 8 / 3
= 2.67
Thus the specific gravity of the material is 2.67
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