For the angle of contact , radius of the tube r, surface tension t, the density of fluid the rise in the column is given by
The radii of the two limbs r1 and r2 are 3.0 mm and 1.5 mm respectively
The level in the limb of diameter 6.0 mm is
The level in the limb of diameter 3.0 mm is
The difference in the heights is h2 - h1 = 4.96 mm

Since the angle of contact is obtuse the Pressure will be more on the Mercury side.
This pressure difference is given as
The dip of mercury inside the narrow tube would be equal to this pressure difference
The mercury dips down in the tube relative to the liquid surface outside by an amount of 5.34 mm.

Speed of the wind above the upper wing surface is v1 = 234 km h-1
Speed of the wind over the lower wing is v2 = 180 km h-1
Let the pressure over the upper and lower wing be P1 and P2
Let the plane be flying at a height of h
The density of air is
Applying Bernoulli's Principle at two points over the upper and lower wing we get
Area of each wing is a = 25 m2
The net upward force on the plane...

The diameter of the artery is d
The viscosity of blood is
The density of blood is
The average velocity is given by
Taking the Maximum value of Reynold's Number ( NRe = 2000) at which Laminar Flow takes place we have

As the fluid velocity increases the dissipative forces become important as turbulence rises due to which drag due to friction forces increases.

The diameter of the artery is
The viscosity of blood is
The density of blood is
The average velocity is given by
Taking the Maximum value of Reynold's Number ( NRe = 2000) at which Laminar Flow takes place we have

The density of whole blood
Gauge Pressure
Height at which the blood container must be placed so that blood may just enter the vein

Since the height of the water level in the vessels is the same the Pressure at the bottom would be equal. As the area of the bottom is also the same the Force exerted by the water on the bottom would be the same.
The difference in the reading arises due to the fact that the weight depends on the volume of the water inside the container which is more in the first vessel. The vertical component...

As we know Specific Gravity of Mercury is 13.6 therefore 13.6 cm of water column would be equal to 1 cm of Mercury column.
The pressure at the Mercury Water interface in the right column = Atmospheric Pressure + 1 cm of Mercury = 77 cm of Mercury
The difference in Pressure due to the level of the Mercury column = Pressure at the Mercury Water interface - Absolute Pressure of the Glass...

In figure (a)
Gauge Pressure = 20 cm of Mercury
Absolute Pressure = Atmospheric Pressure + Gauge Pressure
Absolute Pressure = 76 + 20= 96 cm of Mercury
In figure (b)
Gauge Pressure = -18 cm of Mercury
Absolute Pressure = Atmospheric Pressure + Gauge Pressure
Absolute Pressure = 76 + (-18)= 58 cm of Mercury

Pressure in the waterside at the bottom is
Pressure in the acid side at the bottom is
The pressure difference across the door is
Area of the door, a = 20 cm2
The force necessary to keep the door closed is
Note: The dimensions of the door are small enough to neglect pressure variations near it.

70 oC is above the critical temperature of CO2. Once CO2 is isothermally compressed at this temperature it would not liquefy irrespective of how high the pressure is but at very high pressures CO2 will not behave as an ideal gas.

At -65 oC under 10 atm pressure CO2 is in the solid phase. At room temperature (27 oC) under 10 atm pressure CO2 is in the vapour phase. At 10 atm pressure, CO2 can exist in all three phases depending upon the temperature. Therefore as CO2 is heated from -65 oC to room temperature at a constant pressure of 10 atm it goes from the solid phase to liquid phase and then ultimately it goes into the...

At room temperature (27 oC) and 4 atm pressure CO2 exits in the vapour phase. The pressure 4 atm is less than the pressure at the triple point and therefore points corresponding to all temperatures and this pressure lie in the solid and vapour region. Once we start compressing CO2 from room temperature at this constant pressure CO2 turns from vapour to solid directly without going through the...

The temperature -60 oC lies to the left of the triple point of water i.e. in the region of solid and vapour phases. Once we start compressing CO2 at this temperature starting from 1 atm pressure it will directly convert into solid without going through the liquid phase.

CO2 is liquid at 15 oC under 56 atm pressure as the point corresponding to this condition lies in the liquid region in the given P-T phase diagram of carbon dioxide.

CO2 is solid at -60 oC under 10 atm pressure as the point corresponding to this condition lies in the solid region in the given P-T phase diagram of carbon dioxide.

CO2 is vapour at -70 oC under 1 atm pressure as the point corresponding to this condition lies in vapour region in the given P-T phase diagram of carbon dioxide.

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