Homework unanswered due today 1159 pm water is shot nearly...

Homework Unanswered Due Today, 11:59 PM Water is shot nearly vertically upward in a decorative fountain and the stream is observed to broaden as it rises. Conversely, a stream of water falling straight down from a faucet narrows. What causes the effect in terms of moving fluids? Does surface tension enhance or reduce the effect in each case? Respondes

Transcript

00:01 I will simplify this problem part wise.

00:03 So, when water is shot vertically upwards, upwards, vertically upwards.

00:22 The gravity of the earth, the gravity of the earth, the gravity of the earth acts on it.

00:37 The gravity decreases, the gravity decreases, the fluid velocity, the fluid velocity the fluid velocity more and more more and more as it travels as it travels as it travels vertically upward vertically upward water is water is incompressible in compressible and the flow rate and flow rate remain constant remain constant as the flow rate as the flow rate is constant as the flow rate is constant and velocity decreasing and velocity is decreasing and velocity is decreasing the area must the area must increase as per increase as per the continuity equation continuity equation the increase in area the increase in area the increase in area broadens row dance the steam of water steam of water now let us write about the effect of smaller cross -section area when a steam of water when a steam of water is falling straight straight down falling straight down from the from the faucet the gravity of the earth act the gravity of the earth act on it the gravity increases the gravity increases the fluid velocity the fluid velocity more and more more and more as it travel down or downwards water is incompressible and flow rate remain constant at as the flow rate is constant velocity is increasing the area must decrease so i'm just writing it here as the flow rate is constant as the flow rate is constant and velocity is and velocity is increasing and velocity is increasing the area must the area must decreases the area must decreases as per as per the continuity equation continuity equation as per the continuity equation the decrease in area narrows the stream of water now effect of surface tension...

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