If a pressure of 378 atm is exerted on a circular cross section of radius 0.1 mm, what is the force exerted on the area?

Consider a small surface area of 1 mm^2 at the top of a mercury drop of radius 4.0 mm. Find the force exerted on this area (a) by the air above it (b) by the mercury below it and (c) by the mercury surface in contact with it. Atmospheric pressure =1.0xx10^5Pa and surface tension of mercury =0.465Nm^-1. Neglect the effect of gravity. Assume all numbers to be exact.

What is the force exerted by a Light Beam On a Surface ?

A fuse with a circular cross - sectional radius of 0.15 mm blows at 15 A . What should be the radius of the cross section of a fuse made of the same material that blows at 30 A ?

A radiation of wavelength 200nm is propagating in the form of a parallel surface. The power of the beam is 5mW and its cross-sectional area is 1.0 mm^(2) . Find the pressure exerted by radiation on the metallic surface if the radiation is completely reflected.

A beaker of circular cross-section of radius 4 cm is filled with mercury up to a height of 10 cm. Find the force exerted by the mercury on the bottom of the beaker. The atmospheric pressure =10^5Nm^-2 . Density of mercury =13600 kgm^-3. Take g10ms^-2

Two liquid columns of same height 5m and densities rho and 2rho are filled in a container of uniform cross sectional area. Then ratio of force exerted by the liquid on upper half of the wall to lower half of the wall is.

A stream of water flowing horizontally with a speed of 15 ms^(-1) pushes out of a tube of cross sectional area 10^(-2)m^(2) and hits a vertical wall near by what is the force exerted on the wall by the impact of water assuming.that it does not rebound? (Density of water =1000 kg m^(3) )

A stream of water flowing horizontally with a speed of 15 ms^(-1) pushes out of a tube of cross sectional area 10^(-2)m^(2) and hits a vertical wall nearby. What is the force exerted on the wall by the impact of water assuming that it does not rebound? (Density of water =1000 kg m^(-3) )

The pressure exerted on the smaller and the larger piston of a hydraulic machine is 15 Pa Calculate the force exerted by it on the larger piston, if the area of cross section of the larger piston is 4 m^2 .

A 50 kg. girl wearing high heel shoes balance on a single heel. The heel is circular with a diameter 1 cm. what is the pressure exerted by the heel on the horizontal floor?