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Q6 )Comment upon the population density of fig. 6.1 (b)

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One of the diameter of the circle circumscribing the rectangle ABCD is 4y = x + 7. If A and B are the points

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A rectangular wire frame of size 2 cm x 2 cm, is dipped in a soap solution and taken out.

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How much work is required to form a bubble of 2 cm radius from the soap solution having surface tension 0.07 N/m.

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A drop of mercury of radius 0.2 cm is broken into 8 droplets of the same size. Find the work done if the surface tension of mercury is 435.5 dyne/cm

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Twenty seven droplets of water, each of radius 0.1 mm coalesce into a single drop. Find the change in surface energy. Surface tension of water is 0.072 N/m.

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An air bubble of radius 0.2 mm is situated just below the water surface. Calculate the gauge pressure. Surface tension of water = 7.2x 10-2 N/m.

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Calculate the rise of water inside a clean glass capillary tube of radius 0.1 mm, when immersed in water of surface tension 7x10-2 N/m.

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The pressure of water inside the closed pipe is 3 x105 N/m2. This pressure reduces to 2x105 N/m2 on opening the value of the pipe.

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With what velocity does water flow out of an orifice in a tank with gauge pressure 4 x105 N/m2 before the flow starts?

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The speed of water is 2m/s through a pipe of internal diameter 10 cm.

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With what terminal velocity will an air bubble 0.4 mm in diameter rise in a liquid of viscosity 0.1 Ns/m2 and

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A horizontal force of 1 N is required to move a metal plate of area 10-2 m2 with a velocity of

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Calculate the viscous force acting on a rain drop of diameter 1 mm, falling with a uniform velocity 2 m/s through air.

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In a hydraulic lift, the input piston had surface area 30 cm2 and the output piston has surface area of 1500 cm2.

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