The dam has water of depth 4 ft on one side. The width of the dam (the dimension into the...

The dam has water of depth 4 ft on one side. The width of the dam (the dimension into the page) is 8 ft. The weight density of the water is γ = 62.4 lb/ft3, and atmospheric pressure patm= 2120 lb/ft2. If you neglect the weight of the dam, what are the reactions at A and B?