Advertisements
Advertisements
प्रश्न
Iceberg floats in water with part of it submerged. What is the fraction of the volume of iceberg submerged if the density of ice is ρi = 0.917 g cm–3?
Advertisements
उत्तर
Given, density of ice (ρice) = 0.917 g/cm3
Density of water (ρw) = 1 g/cm3
Let V be the total volume of the iceberg and V’ of its volume be submerged in water. In floating condition.
Weight of the iceberg = Weight of the water displaced by the submerged part of the ice
`Vρ_(ice) g = V^'ρ_w g`
or `V^'/V = ρ_(ice)/ρ_w = 0.917/1` = 0.917 .....(∵ Weight = mg = vρg)
APPEARS IN
संबंधित प्रश्न
Explain why Hydrostatic pressure is a scalar quantity even though the pressure is force divided by area.
A body weighing 5 kgf, placed on a surface of area 0.1 m2, exerts a thrust on the surface equal to
How is the thrust related to pressure?
Name two factors on which the pressure on a surface depends.
Why do camels or elephants have broad feet?
A normal force of 200 N acts on an area of 0.02 m2. Find the pressure in pascal.
Find the area of a body which experiences a pressure of 50000 Pa by a thrust of 100 N?
A boy weighing 60 kgf stands on platform of dimensions 2.5 cm x 0.5 cm. What pressure in pascal does he exert?
Multiple Choice Question.
A hydraulic lift is designed to lift heavy objects of maximum mass 2000 kg. The area of cross-section of piston carrying the load is 2.25 × 10-2 m2. What is the maximum pressure the smaller piston would have to bear?
A brick is kept in three different ways on a table as shown in the following figure. The pressure exerted by the brick on the table will be
 |
 |
 |
| A | B | C |
The total force exerted by a body normal to the surface is called ______.
If the same force is made to act on a larger area, the pressure ______.
What is thrust?
Cooking in a place located at a higher altitude is difficult. Why?
What is an Artisan aquifer?
Upthrust = weight of the fluid displaced – apparent weight of the object.
What is the SI unit of pressure?
Define thrust.
