Advertisements
Advertisements
प्रश्न
1 kgf = .............. (nearly).
Advertisements
उत्तर
1 kgf = 10 N (nearly)
APPEARS IN
संबंधित प्रश्न
Explain why The blood pressure in humans is greater at the feet than at the brain
Two vessels have the same base area but different shapes. The first vessel takes twice the volume of water that the second vessel requires to fill up to a particular common height. Is the force exerted by the water on the base of the vessel the same in the two cases? If so, why do the vessels filled with water to that same height give different readings on a weighing scale?
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].
Find the thrust required to exert a pressure of 50000 pascals on an area of 0.05 m2 ?
Calculate the pressure in pascal exerted by a force of 300 N acting normally on an area of 30 cm2.
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.
Consider the statement given below and choose the correct option.
Assertion: Broad straps are used in bags.
Reason: Broad straps last for long.
Intermolecular forces are stronger in ______.
Fluids in general are ______.
Pressure is a scalar quantity because ______.
- it is the ratio of force to area and both force and area are vectors.
- it is the ratio of the magnitude of the force to area.
- it is the ratio of the component of the force normal to the area.
- it does not depend on the size of the area chosen.
