A geologist finds that a moon rock whose mass is 7.2 kg has an apprant mass 5.88kg when submerged in water what is the density of rock
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Answered by
15
Answer:
Density of rock=(6315 kg/m^3)
Explanation:
It is a universal fact that mass of an object remains constant whether measured on earth or on moon.
Mass of rock on moon/earth = 7.2
When the block is immersed in water then;
Loss in weight = weight of water displaced
Loss in weight =7.02 - 5.88 = 1.14 kg = 1140g
As we know that water has a density of 1g/cm^3 (1000kg/m^3)
Volume of water = volume of the rock
= Mass/density;
=1140 cm^3
density of rock = mass/volume = 7200/1140 = 6.315 g/cm^3
Density of rock=(6315 kg/m^3)
Answered by
5
Answer:
5454kg/m^3
upthrust is equal to wt of displaced liquid from Archimedes principle.
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