2.7. For the scheme shown in Fig. 6, it is given that t

2.7. For the scheme shown in Fig. 6, it is given that the atmospheric pressure rt corresponds to the height of the mercury column h = 750 mm. Determine the pressure on the free surface of the water in a closed reservoir p0 if the levels h1 and h2 are known.
2.8. For the conditions of task 2.7, determine the excess pressure in the water tank.