Page 1 : 27. Why is the pressure of water reduced when it comes to narrow pipe from wide pipe while flowin, , 28. The terminal velocity of a sphere of radius r in a viscous fluid is v, Wha’, , 29., , 31., , 32., , 33., 34., , 35., , 36., , 37., , 38., 39., , 40., , 41., , 42., , 43., , 44., , , , , , , , film br, ty preferre, ster than h, , 55. Water flows fa, , Py ie ee ee, , , , eS a flag flutte, , the effect of, ting of 3 cm ra, , feo ne : ae oan, , it easier to sy, , , , 38, =, oS, s, o, &, &, , ral, , More before the, , What is, Why do, 53. The d,, , tis the terminal velocity of ae, , Zz, , 52. A wire, 54. Why is mercy, , 21, , of radius 2r and of the same density in the given viscous fluid?, , The hotter liquid flows faster than the cold ones. Explain, Why?, Two equal drops of water are falling through air with a steady velocity v. If the drops coalesced, what will, , be the new steady velocity?, pee . re 2sqm is separated from a large plate by a layer of oil 2mm thick. If the coefficient of, Of this oil is 0.01, What force is required to keep the plate moving with a velocity of Scm/sec. Also ‘a, , find strain rate., A metal plate of area 0.10m? is connected to a 0.01kg mass via a string, , that Passes over an ideal pulley (considered mass less and frictionless), as, in fig. A liquid with a film thickness of 0.03 mm is placed between the plate, and the table. When teleased the plate moves to the right with a constant, speed of 0.085ms"'.Find the coefficient of viscosity of the liquid. \ ff, , Eight rain drops of radius 1mm each falling downwards with a términal, , velocity of 5cm s" collapse to from a bigger drop. Find the terminal velocity of bigger drop., Calculate the total energy passed by one kg of water at a point wheresthe pressure is 20wt/sq mm, velocity, , , , is 0.1ms" and the height is 50cm. Above the ground level. y, A small hole is made at a height of (1/V2 )m from the bottom. of aicylindrical water tank and at a depth of, h = ¥2m from the upper level of water tank. Find the*distance;where the water emerging from the hole, strikes the ground. SJ) }, , A large open tank has two holes in the wall. One is squareshole of side L at a depth h from the top and the, other is a circular hole of radius r at a depth 4h from. the top’ When the tank is completely filled with water,, , the quantities of water flowing out per second from both the hole are the same. What Is the value of r?, Water flows at a speed of 6cm” through @ pipe_of tube of radius 1cm.Calculate of viscosity of water at, , Toom temperature is 0.01 poise. Whats the nature of flow?, A solid floats in water with % of its volume below the surface of water. Calculate the density of solid., , In a car lift compressed air exerts ’axforce\F; on a small piston having a radius of 5cm. This pressure is, , necessary to accomplish is,0:01 poise) What is the nature of flow?, Water flow through a horizontal pipe, whose internal diameter is 2.0cm at a speed of 1.0ms". What would, , be the diameter of the nozzle, if the water is to emerge at a speed of 4.0ms"?, The reading of pressure meter attached with a closed pipe is 3.5 x 10°Nm?.On opening the value of the, g.of pressure meter is reduced to 3.5 x 10°Nm”. Calculate the speed of the water flowing in, , pipe, the readin,, , the pipe. ) y, , What Is the flowing through two horizontal pipes of different diameter which ate connected together. In the, , first pipe the speed.of water is 4ms” and the pressure is 2.0 x 10‘Nm”. Calculate the speed and pressure, , of waterinthe second pipe. The diameter of the pipe are 3cm and 6cn respectively., , Two cross-sectional area of water pipe entering the basement is 4 x 10“m?.The pressure at the point is n, , 3 x 10°Nm~ and the speed of water is 2ms"'.This pipe tapers to a cross-sectional area of 2 x10“*m? when it, , reached the second floor 8m above. Calculate the speed and pressure at the second., , Water is filled in cylindrical container to a height of 3m, as shown in fig. the ratio of the cross-sectional area, , of the orifice and the beaker is 0.1.Find the speed of the liquid coming out from the orifice. given g = 10ms°., i 7.5 cm in mains and 15cm diameter in throat. The difference {, , , , mercury = 32 x 10°Nm",, , To ame ce a, all of the same radius r, bias 1e energy released is converted into kinetic energy, find the, , , , , Shot by Debasish