Consider a soap bubble 2mm in diameter and a droplet of water also 2mm in diameter that are falling in air. If the value of the surface tension for the film of the soap bubble is assumed to be the same as that of water, which has a greater pressure?

Consider a cylinder of fluid of length L and radius R flowing steadily in the centre of a pipe of radius r as shown below                                              L                                   r                                                                     R             Show that when the flow in the pipe is laminar the pressure loss is directly proportional to the velocity and obeys the equation   Where v is the velocity D is the diameter of the pipe

Solve it

Fluid Mechanics Will water in a parafin wax capillary tube inserted vertically in a reservoir of water attain a height in the tube greater than or less than the height of the reservoir, and why?