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Question

Complete the following tables.

Mass(Kg) Volume (m3)Density(kg/m3)
350 175 -
- 190 4
Density of Metal (kg/m3) Density of water (kg/m3) Relative Density
103 5
8.5×103 103 -
weight(N) Area (m2)Pressure(Nm−2)
- 0.04 20,000
1500 500 -

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Solution

We know, Density=Mass/Volume

So, using the above formula, we can find one quantity if the other two quantities are given.

Mass (kg) Volume (m3)Density (kg/m3)
350 175 2
760 190 4

We know, Relative density of substance = (Density of substance)/(Density of water)

So, using the above formula, we can find one quantity if the other two quantities are given.

Density of Metal (kg/m3) Density of water (kg/m3)Relative Density
5×1031035
8.5×1031038.5


We know, Pressure=Force/Area

So, using the above formula, we can find one quantity if the other two quantities are given.

Weight (N) Area (m2)Pressure (N m−2)
800 0.04 20,000
1500 500 3

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