Water is being fired at 20 m/s from a hose of 80 mm diameter into the atmosphere. The water leaves the hose through a nozzle with a diameter of 25 mm at its exit.
Using the combination of continuity, momentum and Bernoulli's equations, find
the pressure just upstream of the nozzle and the force on the nozzle. [10 marks]
1
2
Data: 01 = unknown; d = 0.08m; U2 = 20 m/s; d2 = 0.025m.
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explanation:

wind is defined by the direction it blows from.   for example, a wind blowing from north to south is called a northerly wind.

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

grav potential energy