A liquid of density 1237 kg/m² flows with
speed 1.84 m/s into a pipe of diameter 0.18 m.
The diameter of the pipe decreases to 0.05 m
at its exit end. The exit end of the pipe is
3.08 m lower than the entrance of the pipe,
and the pressure at the exit of the pipe 1.3 atm. Applying Bernoulli’s principle what is the pressure P1 at the entrance end of the pipe? ​

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