When a cloudburst in the summer of 2011 in Sweden some sewer pipes were completely filled with water. The sewer lids had been fastened, but in some places the large amounts of water pushed anyway the sewer lids anyway. At one point, the water in a sewer pipe, was pushed up 37.5 m above the level of the sewer lid, in a huge water column. The radius of the sewer lid is 29 cm. a) Determine the magnitude of the force of the water exerts on the sewer lid I know that the answer somehow resolves around computing the pressure in the water column and then find the difference in pressure working respectively upwards and downwards on the lid, and the turn that pressure in to force via the area of the lid.