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(a) Which has greater denstiy: 1kg or ir...

(a) Which has greater denstiy: 1kg or iron or 2 kg of iron?
(b) If a hollow sphere and a solid sphere are both made of the same amount of iron, which sphere has greater average density?

Text Solution

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(a) They have the same density as the density of a material does not depend on the amount of material.
(b) The solid sphere has the greater average density because it occupies the smallest volume for a given mass of iron.
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