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The reading of pressure meter attached w...

The reading of pressure meter attached with a closed water pipe is `3.5 xx 10^(5) Nm^(-2)` . On opening the valve of the pipe, the reading of pressure meter is reduced to `3 xx 10^(5) Nm^(-2)`. Calculate the speed of water flowing out of the pipe.

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20 m `s^(-1)`
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