1. Density of Cu is 8.92 g/cc. Density of water is 10 3 kg/m 3 . Determine relative density of Cu. 2. Volume of a 100g stone is 200cm 3 . If density of water is 10 3 kg/m 3 , will the stone float or sink in water. What will be the mass of water displaced by the stone?
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1. Density of water=10³kg/m³=1 g/cc
Relative density of Cu=density of Cu/density of water
=8.92/1=8.92
2. Volume=200 cc
Mass=100 g
Density=mass/volume= 100/200=1/2 g/cc=0.5 g/cc
Density of water=1 g/cc
From this, clearly we can observe that Density of stone<Density of water.
This implies stone floats on water.
The mass of water displaced by the stone=apparent mass of the stone.
Apparent weight=Real weight-Buoyancy force.
You may find the answer now.
Hope this answer helped you.
Relative density of Cu=density of Cu/density of water
=8.92/1=8.92
2. Volume=200 cc
Mass=100 g
Density=mass/volume= 100/200=1/2 g/cc=0.5 g/cc
Density of water=1 g/cc
From this, clearly we can observe that Density of stone<Density of water.
This implies stone floats on water.
The mass of water displaced by the stone=apparent mass of the stone.
Apparent weight=Real weight-Buoyancy force.
You may find the answer now.
Hope this answer helped you.
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