The force on a Phonograph needle is `1.2 N.` the point has a circular cross-section whose radius is 0.1 mm. Find the pressure (in atm) it exerts on the recods. Given `1 "atm" = 1.013 xx 10^(5) Pa.`

Force on a phonograph needle is 120 gf. The needle end has a circular cross-section of radius 0.1 mm. Find the pressure (in atm) it exerts on the record. Given, 1 atm = 1.013 xx 10^(5) Pa. Use g=10ms^(-2)

The force on a phonogram needle is 1-2N. The point has a circular cross-section of radius 0-1 mm. What pressure does it exert on the record in (i) Pa (ii) atm?

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?

A spherical ball contracts in volume by 0.0098% when subjected to a pressure of 100 atm. Calculate its bulk modulus. Given 1 atm =1.01xx10^(5) Nm^(-2) .

What is the excess pressure inside a bubble of soap solution of radius 5.00mm, given that the surface tension of soap solution at the temperature (20^(@)C) is 2.50xx10^(-2)Nm^(-1) ? If an air bubble of the same dimension were formed at a depth of 40.0 cm inside a container containing the soap solution (of relative density 1.20), what would be the pressure inside the bubble? (1atm. is 1.01 xx 10^(5)Pa ).

Water flowing steadily through a horizontal pipe of non-unifrom cross-section. If the pressure of water is 4xx10^(4)N//m^(2) at a point where cross-section is 0.02 m^(2) and velocity of flow is 2 ms^(-1) . The pressure at a point where cross-section reduces to 0.01 m^(2) is 3.4xx10^(n) Pa. What is the value of n ?

Water is filled in a flask upto a height of 20cm . The bottom of the flask is circular with radius 10 cm . If the atmospheric pressure is 1.013xx10^(5) Pa, find the force exerted by the water on the bottom . Take g=10 "ms"^(-2) and density of water =1000 "kgm"^(-3).

Water is filled in a flask up top a heightof 20 cm. The bottom of the flask is circular with radius 10 cm.If the atmospheric pressure is 1.01xx10^5 Pa, find the force exerted by the water on the bottom. Take g=10 ms^-2 and density of water =1000 kgm^-3 .

Water flows along the horizontal pipe of which the cross-section is not uniform. The pressure is 30 mm . Of Hg where the velocity is 0.20 ms^(-1) . Find the pressure at a point where the velocity is 1.20 ms^(-1) .

A 3000 cm^(3) tank contains oxygen at 20^(@)C and the gauge pressure is 2.5 xx 10^(6) Pa . Find the mass of the oxygen in the tank. Take 1 atm = 10^(5) Pa .