Задача id10766

Water flows through a horizontal pipe that suddenly expands from d1 = 0.1 m to d2 = 0.15 m. Water flow Q = 0.03 m3/s. Determine: a) pressure loss due to sudden expansion of the pipe; b) pressure difference in the narrow and wide sections of the pipe; c) pressure loss and pressure difference when changing movement (from a wide pipe to a narrow one); d) pressure difference during gradual expansion of the pipe (assuming pressure losses are negligible).

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