Can two streamlines in a flowing liquid cross each other ?

In a streamline flow

Two streamlines cannot cross each other. Why?

What is laminar flow of liquid?

For a stream line flow of water following statements are given below (a) Two streamlines do not intersect each other. (b) streamlines must be straight. (c ) streamlines flow is more likely for liquids with low density and height viscosity. (d) streamlines flow is more likely for liquids with high density and low viscosity.

Two train travelling in opposite directions at 126 km/hr each, cross other while one of them is whistling if the frequency of the node is 2.22 kHz find the apparent frequency as head by an observer in the other train : (a) Before the trains cross each other (b) After the trains have crossed each other (V_("sound") = 335 m//sec)

A liquid flows easily . Why ?

Why do the electric field lines never cross each other ?

Two simple pendulums of equal length cross each other at mean position. What is their phase difference ?

A portion of a tube is shown in the figure. Fluid is flowing from cross-section area A_(1) to A_(2) . The two cross-sections are at distance 'l' from each other. The velocity of the fluid at section A_(2) is sqrt((gl)/(2)) . If the pressures at A_(1) & A_(2) are same, then the angle made by the tube with the horizontal will be:

The internal resistance to flow in liquid is called