Recent content by footos66

Which is: mass of air (at Height, h) = [mass of payload+mass of balloon+mass of lifting gas] is that the right one?

New problem The values: Balloon diameter : 100 feet Balloon weight : 10,000 pounds Payload weight : 6,000 pounds Lifting gas : Helium Air density at ground level : .0625 lbs/cubic foot Temperature is constant At what altitude does the balloon fly? So far I've got: h = alpha [0.862...