A syringe with a 4.0-cm-long needle is filled with water at20^\circ {\rm C}. Radius of thesyringe is 1.0 cm and the radius of the needle is 1.0mm. Velocityof the water flowing out is 10m/s. What is the gauge pressure ofthe water at the point P, where the needle meets the wider chamberof the syringe?