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Water flows in a horizontal tube (see fi...

Water flows in a horizontal tube (see figure). The pressure of water changes by 700 `Nm^(-2)` between A and B where the area of cross section are `40cm^(2)` and `20cm^(2)`, respectively. Find the rate of flow of water through the tube.

A

2720 `(cm^(3))/s`

B

`2420 (cm^(3))/s`

C

`3020 (cm^(3))/s`

D

`1810 (cm^(3))/s`

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