8) To calculate the flow rate; Q of a liquid flowing in a pipe, a Venturi meter is used (see figure on the right). The cross-sectional area of the unrestricted pipe is A1 and that of the throat (i.e. the restricted part) is A2. The flow rate Q is found from: Q=A1(A2A1)212gh where h is the difference in height and g is the acceleration due to gravity (9.81m/sec2), which is constant. Write a Python program that reads r1 and r2 (the radii of the unrestricted pipe and the throat) and the difference in height, h, and then output the flow rate