1. The problem statement, all variables and given/known data Denver's Mile High football stadium incorporates a system by which a section of stands can be moved to accommodate different sports on the field. The grandstand, which has a mass of 4x10^6 kg, can be moved a distance of 45 m on a thin film of water. The movable grandstand rests on 46 bearing pads that are each 1.22m in diameter. Water at high pressure is pumped into each of the pads until the stands are lifted a vertical distance of 3.8 cm. Excess water forms a lubricating film over which the grandstand is moved. The force required to move the stands is approximately 4.45 N per 450 kg of staduym mass. Calculate the following: a. The pressure of the water under each bearing pad b. The power of the motor required to move the grandstands over the distance of 45 m if the job takes 1 h. c. the work required to raise the grandstand 3.8 cm. 2. Relevant equations See attachment formulas. Here is a brief description of each: 1. Force-displacement work 2. Force-displacement power 3. PdV work (piston) 4. PdV power 3. The attempt at a solution Am I picturing this problem correctly (see "picture" attachment)? I don't understand the bearing pads part. Do the bearing pads move or are the bearing pads wet and the grandstand slides on the bearing pads? And for part (a) asking the pressure of the water under each bearing pad, does this mean the water pressure inside each pad? I'm very confused about this problem and don't even know where to start. Any help would be appreciated. Thanks!