Bernoulli's principle is based on conservation of energy and the equation of continuity is based on conservation of mass. With these two principles, we see that as a fluid with negligible viscosity flow from a larger channel to a smaller channel, the speed of the flow must increase in the smaller channel, and the fluid pressure will drop. Consider water with negligible viscosity flowing in a channel as shown in the figure. The heights of the fluid above the two parts of the channel give the gauge pressure of the fluid flowing in that portion of the channel below. The larger diameter of the channel is given by D1 = 3.1 cm and the smaller diameter is D2 = 1.3 cm. 10.0 cm 5.00 cm D1 D2 | m/s. The speed of the water flowing in the smaller channel with diameter D2 is

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