The water is flowing through a pipe having diameters of 20 cm and 15 cm at sections 1 and 2 respectively, The rate of flow through the pipe is 40 litres/s. Section 1 is 6 m above the datum line and section 2 is 3 above the datum. If the pressure at section 1 is 29.43 N/cm", find the intensity of pressure at section 2.
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