Convert a pressure of `76 cm` of mercury into `Nm^(-2)`. Density of mercury is `13.6 gm//c c`.

An open capillary tube is lowered in vessel with mercury. The difference between the levels of the mecury in the vessel and in the capillary tube /_\h=4.6 mm . What is the radius of curvature of the mercury meniscus in the capillary tube? Surface tension of mercury is 0.46N//m , density of mercury is 13.6gm//"cc" .

Calculate the equivalent height of water barometer if the pressure recorded by mercury barometer is 76 cm. Density of mercury is 13600kgm^(-3) and density of water is 1000kgm^(-3) .

A barometer kept in an alevator ac celerating upward reads 76 cm of mrecury. If the elevator is ac celerating upwards at 4.5ms^(-2) find the air pressure in the elevator in cm of mercury. Density of mercuty =13.6 xx 10^3 kg m^(-3) G = 9.8 m//s^2

What volume will 250 g of mercury occupy ? (Density of mercury =13.6 g cm^(-3) )

The volume of an air bubble becomes 8 times the original volume in rising from the bottom of a lake to its surface. If the barometice height is 0.76 m of mercury (density of mercury is 13.6 g cm^(-3) and g = 9.8 ms^(-2)) what is the depth of the lake ?

Water rises to a height of 10 cm in a capillary tube and mercury falls to a depth of 3.42 cm in the same capillary tube. If the density of mercury is 13.6 g//c.c. and the angles of contact for mercury and water n for water and are 135^(2) and 0^@ , respectively, the ratio of surface, tension for water and mercury is

Caculate the root mean square velcity of molecules of a gas whose densilty is 1.4kgm^(-3) at a pressure of 76cm of mercury (sp. gr. sp.of mercury =13.6 and g=9.81ms^(-2) )