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
The density of gold is 19 g/cm3. Find the volume of 95 g of gold.
Calculate the density of an object of volume 3 m3 and mass 9 kg. State whether this object will float or sink in water. Give reason for your answer.
5 kg of material A occupy 20 cm3 whereas 20 kg of materia! B occupy 90 cm3. Which has the greater density : A or B ? Support your answer with calculations.
Define relative density. What is the SI unit of relative density ?
The density of turpentine is 840 kg/m3. What will be its relative density ? (Density of water = 1000 kg/m3)
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
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.
To find out the relative density of the substance, with respect to the density of water ______C is taken.
