Advertisements
Advertisements
प्रश्न
What is the mass of 5 m3 of cement of density 3000 kg/m3 ?
Advertisements
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
What is the difference between the density and relative density of a substance ?
Write down an equation that defines density.
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.
A metal in which even iron can float is :
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?
The diagrams represent four measuring cylinders containing liquids. The mass and volume of the liquid in each cylinder are stated. Which two measuring cylinder could contain an identical liquid?
Numerical Problem.
Density of mercury is 13600 kg m–3. Calculate the relative density.
Calculate the average density of the earth in terms of g, G and R
A cube of side 5 cm is immersed in water and then in a saturated salt solution. In which case will it experience a greater buoyant force. If each side of the cube is reduced to 4 cm and then immersed in water, what will be the effect on the buoyant force experienced by the cube as compared to the first case for water. Give a reason for each case.
Describe the construction and working of the Pycnometer.
