Joseph decides to calculate p2 under the conditions that a2 is set to twice a1. then he realizes that they would need to find the velocity of the fluid in tube 2, v2, in order to predict p2. lilli then suggests that they make use of the continuity equation to predict v2 and then use bernoulli's equation to find p2. joseph carries out the calculation that lilli suggested to calculate the speed and pressure of the fluid in tube 2. note that the density of water can be taken as 1000 kg/m3. once he has the correct result, he runs the simulation to check his results.