The weight of an aeroplane flying in the air is balanced by
Vertical component of the thrust created by air currents striking the lower surface of the wings
Force due to reaction of gases ejected by the revolving propeller
Upthrust of the air which will be equal to the weight of the air having the same volume as the plane
Force due to the pressure difference between the upper and lower surfaces of the wings created by different air speeds on the surfaces
The Working of an atomizer depends upon
In this figure, an ideal liquid flows through the tube, which is of uniform cross-section. The liquid has velocities${v_A}$ and ${v_B}$, and pressure $P_A and P_B$ at points $A$ and $B$ respectively
Why two rowing boats moving parallel to each other come closer (attract) to each other ?
According to Bernoulli's equation $\frac{P}{{\rho g}} + h + \frac{1}{2}\,\frac{{{v^2}}}{g} = {\rm{constant}}$ The terms $A, B$ and $ C$ are generally called respectively:
Alaminar stream is flowing vertically down from a tap of cross-section area $1$ $cm^2$. At a distance $10 $ $cm$ below the tap, the cross-section area of the stream has reduced to $1/2$ $cm^2$. The volumetric flow rate of water from the tap must be about ........ $litre/\min$