Advertisements
Advertisements
प्रश्न
What is the mass of 5 m3 of cement of density 3000 kg/m3 ?
उत्तर
ρ (density) = 3,000 kg/m3
V (volume) = 5 m3
m (mass) = ?
`ρ = m/V`
ρ×V=m
3,000 × 5 = m
15,000 = m
Answer: Mass of cement = 15,000 kg.
APPEARS IN
संबंधित प्रश्न
Write down an equation that defines density.
A piece of steel has a volume of 12 cm3, and a mass of 96 g. What is its density in g/cm3 ?
A body floats in kerosene of density 0.8 x 103 kg/m3 up to a certain mark. If the same body is placed in water of density 1.0 x 103 kg/m3, will it sink more or less ? Give reason for your answer.
When a golf ball is lowered into a measuring cylinder containing water, the water level rises by 30 cm3 when the ball is completely submerged. If the mass of ball in air is 33 g, find its density.
A piece of steel has a volume of 12 cm3, and a mass of 96 g. What is its density in kg/m3 ?
An object is put in three liquids having different densities, one by one. The object floats with `1/9` , `2/11` and `3/7` parts of its volume outside the surface of liquids of densities d1, d2 and d3 respectively. Which of the following is the correct order of the densities of the three liquids?
The relative densities of four liquids P, Q, R and S are 1.26, 1.0, 0.84 and 13.6 respectively. An object is floated in all these liquids, one by one. In which liquid the object will float with its maximum volume submerged under the liquid?
Why is it easier to swim in seawater than in river water?
Calculate the average density of the earth in terms of g, G and R
Describe the construction and working of the Pycnometer.
