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प्रश्न
A drinking straw works on the existence of ______.
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उत्तर
A drinking straw works on the existence of Pressure.
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संबंधित प्रश्न
A 50 kg girl wearing high heel shoes balances on a single heel. The heel is circular with a diameter 1.0 cm. What is the pressure exerted by the heel on the horizontal floor?
A large He balloon of volume 1425 m3 is used to lift a payload of 400 kg. Assume that the balloon maintains constant radius as it rises. How high does it rise? [Take y0= 8000 m and `rho_"He"`= 0.18 kg m–3].
It is easier to hammer a blunt nail into a piece of wood than a sharply pointed nail.
State the unit of thrust
Find the area of a body which experiences a pressure of 50000 Pa by a thrust of 100 N?
Calculate the pressure in pascal exerted by a force of 300 N acting normally on an area of 30 cm2.
The figure shows a brick of weight 2 kgf and dimensions 20 cm × 10 cm × 5 cm placed in three different positions on the ground. Find the pressure exerted by the brick in each case.
The pressure in mines is ______ than the sea level.
Assertion (A): Wide wooden sleepers are kept below railway lines to reduce pressure on the railway tracks and prevent them from sinking into the ground.
Reason (R): Pressure is directly proportional to the area in which it is acting.
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?
