Water flows through a horizontal pipe whose internal diameter is 2 cm
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hi there friend !!!!!!!!!!
Assuming that you have enough pressure to maintain the velocity of 1m/s in the pipe, then the velocity is dependent on the area of the aperture (nozzle). So, you want a nozzle with an area ¼ of the pipe area.
Since A = πr^2, the radius of the nozzle must be half the radius of the pipe.
So, the diameter of the nozzle is ½(2cm) = 1cm.
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