Hydrodynamics
Quick practice
Question 1 of 5
Water is moving with a speed of 5.18 m
 through a pipe with a cross-sectional area of 4.20 c
. The water gradually descends 9.66 m as the pipe increase in area to 7.60 c. The speed of flow at the lower level is           Â
A
2.86 ms–1
B
3.82 ms–1Â
C
5.7 ms–1 Â
D
3.0 ms–1Â
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