a large aquarium has viewing ports so people can watch dolphins swim by. a window is set near the bottom of the aquarium and is angled at 60.0 degrees to the horizontal, so people can look up at the dolphins. if the window is 2.30 m wide and 1.20 m high, and if the top of the window is 4.50 m below the surface of the water, what is the net force on the window?
