Physics
What force is applied on a piston of area of cross section 2 cm 2 to obtain a force 150 N on the piston of area of cross section 12 cm 2 in a hydraulic machine ?
Related Questions
A force of 50 kgf is applied to the smaller piston of a hydraulic machine. Neglecting friction, find the force exerted on the large piston, if the diameters of the pistons are 5 cm and 25 cm respectively.
Two cylindrical vessels fitted with pistons A and B of area of cross section 8 cm 2 and 320 cm 2 respectively, are joined at their bottom by a tube and they are completely filled with water. When a mass of 4 kg is placed on piston A, find : (i) the pressure on piston A, (ii) the pressure on piston B, and (iii) the thrust on piston B.
The thrust exerted per unit area on the earth's surface due to a column of air is called :
- pressure
- atmospheric pressure
- density
- buoyancy
The normal atmospheric pressure is :
- 76 m of Hg
- 76 cm of Hg
- 76 Pa
- 76 N m-2