Advertisements
Advertisements
प्रश्न
How much thrust will be required to exert a pressure of 20,000 Pa on an area of 1 cm2.
Advertisements
उत्तर
Pressure =20,000 Pa
Area = 1 cm2
= 10-4 m2
Force = Pressure × area
=20,000 x 10-4 = 2 Newton
APPEARS IN
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?
In problem 10.9, if 15.0 cm of water and spirit each are further poured into the respective arms of the tube, what is the difference in the levels of mercury in the two arms? (Specific gravity of mercury = 13.6)
Why is the bottom part of the foundation of a building made wider?
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?
Consider the statement given below and choose the correct option.
Assertion: Broad straps are used in bags.
Reason: Broad straps last for long.
Explain the variation of the pressure exerted by liquid with respect to the following factors.
- Amount of liquid
- Depth
- Shape and size of the container
In petrol bunks, in what unit is tire pressure measured?
What is an Artisan aquifer?
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.
