Question

a brick of density of mass 1kg and density 2.5g/cm^3is immersed in the water,how much mass of the water is displaced by it?
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Answer 1

Answer:

2/5 kg or 0.4kg

Explanation:

The explanation is in the pic above.

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Answer 2

Answer:

0.4 kg mass of the water is displaced by it.

Explanation:

Mass exists as a measure of the amount of matter in an object. Mass exists usually measured in grams (g) or kilograms (kg).

Given,

mass of brick m = 1 kg

density of brick d = 2.5 g/cm3

$= 2.5 * 1000 = 2500 kg/m^{3}$

So, volume of brick v = m/d

v =1/2500

$v = 4 *10 -4 m^{3}$

when brick exists immersed in water it displaces the same volume of water as the volume of brick. The volume of water displaces

$m = 1000 *4 * 10-4$

m = 4/10

m= 0.4 kg

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