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
The S.I. unit of pressure is pascal.
A body weighing 5 kgf, placed on a surface of area 0.1 m2, exerts a thrust on the surface equal to
The base of a container measures 15 cm × 20 cm. It is placed on a table top. If the weight of the container is 60 N, what is the pressure exerted by the container on the table top?
Water flows through a horizontal tube of variable cross section. The area of cross section at A and B are 4 mm2 and 2 mm2 respectively. If 1 cc of water enters per second through A, find (a) the speed of water at A, (b) the speed of water at B and (c) the pressure difference PA − PB.
Match the following.
| 1. | Density | hρg |
| 2. | 1 gwt | Milk |
| 3. | Pascal’s law | `"Mass"/" Volume"` |
| 4. | Pressure exerted by a fluid | Pressure |
| 5. | Lactometer | 980 dyne |
A chapatti maker is a machine which converts balls of dough into chapatties. What effect of force comes into play in this process?
At higher altitudes, atmospheric pressure is ______.
Pressure can be increased by decreasing the force.
Pressure is directly proportional to the area of contact.
What is an Artisan aquifer?
