Numerical problems:
1) The mass of 1m³ of water is 1kg. Find out the density of water?
2) If the volume of a cube is 5m³ and its density is 500kg/m³. What is its mass?
3) An irregular object has a mass of 42g and a density of 3g/cm³. Find the value.
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Answers
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Explanation:
Question 1 :-
The mass of 1m³ of water is 1kg. Find out the density of water?
Solution 1 :-
Volume = 1m³
Mass = 1Kg
Density = Mass/Volume
⇒ 1/1
⇒ 1Kg/m³ is the density of water.
Question 2 :-
If the volume of a cube is 5m³ and its density is 500kg/m³. What is its mass?
Solution 2 :-
Volume = 5m³
Density = 5000Kg/m³
Mass = Density × Volume
⇒ 500 × 5
⇒ 2500 Kg is the mass of cube.
Question 3 :-
An irregular object has a mass of 42g and a density of 3g/cm³. Find the volume.
Solution 3 :-
Mass = 42g
Density = 3g/cm³
Volume = Mass/Density
⇒ 42/3
⇒ 14 cm³ is the volume of the object.
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