3.33 As shown, an air space above a long tube is pressurized to
50 kPa vacuum. Water (20°C) from a reservoir fills the tube to a height h. If the pressure in the air space is changed to 25 kPa vacuum, will h increase or decrease, and by how much? Assume atmospheric pressure is 100 kPa.
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Негізгі бет will h increase or decrease, and by how much?
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