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If the closed side of a U-tube is evacuated, then

If the closed side of a U-tube is evacuated, then. the fluid in the closed side will be the same height as the open side. the fluid will always be sucked to the top of the closed side. the fluid will be sucked up to a height h=P atm / r g. PAL.

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If the closed side of a U-tube is evacuated, then

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  1. If the closed side of a U-tube is evacuated, then • the fluid in the closed side will be the same height as the open side. • the fluid will always be sucked to the top of the closed side. • the fluid will be sucked up to a height h=Patm/rg

  2. PAL Take two strips of paper, hold between thumb and forefinger of each hand. Let them hang down a couple cm apart. Blow between (not at) the strips. What happens?

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