Water is flowing through a channel that is 12 m wide with a speed of 0.75 ms -1 . The water then flows into four identical channels that have a width of 4.0 m each. The depth of the water does not change as it flows into the four channels. The speed of the water in one of the smaller channels is
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Verified by ExpertsThe correct answer is:
A
Av = A 1 v 1 + A 2 v 2 + A 3 v 3 + A 4 v 4
Av = 4(A 1 v 1 )
12 x 0.75 = 4 [4 x v]
= 0.75 x 0.75
v = 0.56ms -1
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