Q1. A stream of water emerging from a tap gets narrower as it falls. It is said that it \"necks down\". One measurement of the cross-sectional area just under the outlet is 1.2 cm2 and further down at the distance of 45 mm the cross sectional area is 0.35 cmz. Now we collect this water into a container and connect the container onto a pipe and it ows smoothly through this horizontal pipe that tapers in crosssectional area from 1.20 X 103 m2 to half of this area. We measure that the pressure difference between the Wide and narrow sections of pipe is 4120 Pa. (a) What is the cause behind the necking down of the water stream? (b) Draw a diagram of the water coming out of the tap. (c) What is the volume ow rate from the tap? (d) Does the pressure increase or decrease as the water ows through the tapered horizontal pipe? Explain your reasoning. (e) What is the volume ow rate of the water in the pipe