14 - The spray consists of a compressible rubber ball and thin glass tubes in the shape of the letter T. The tube is immersed in water, such that the top end is at a height of h = 10 cm above the surface. We quickly squeeze the rubber ball so that its volume is reduced by 1%. How much speed should the air in the horizontal part of the thin tube have, to make the water splash out sprays? For the density of air in the tube take rho=1.3 kg/m, for water density rho 1000 kg/m, for outdoor air The pressure is 1 bar. [Solution: v=55.4 m/s.] Po