a pipe line 0.2 m in diameter, flowing full of water has a constriction of diameter 0.1 m. if the velocity in the 0.2m pipe line is 2ms^-1. calculate (a). the velocity in the contriction, and (b). the discharge rate in cubic meters per sec.
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I don't know
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I don't know I want some points to ask a question sorry for doing this
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