Question

Q4: You can squirt water over a greater distance by
placing your thumb over the end of a garden hose,
than by leaving it completely uncovered. Explain how
this works?

Answer 1

Answer:

There are two reasons for the greater distance travelled by the water emerging from the hose. By placing your thumb over the end you are increasing the pressure of the water and therefore the kinetic energy imparted to the water at the point of exit which becomes dissipated over the distance travelled.