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Unformatted text preview: r = g h = 2 r + p a p b Therefore, the height, h , is h = 2 gr + p a p b g 1.62(b): If the atmospheric pressure is such that = 2 p a r , then h is given by h = 4 p a g + p a p b g = 5 p a p b g This equation tells us that before we pressurize the fluid in the tube, i.e., when p b = p a , the height is h o = 4 p a g = h h o = 1 4 X 5 p b p a ~ 64 CHAPTER 1. INTRODUCTION So, to halve the height, we must have 1 2 = 1 4 X 5 p b p a ~ Solving for p b /p a yields p b p a = 3...
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 Spring '06
 Phares

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