The highest that George can suck water up a very long straw is2.0 m. (This is a

Question

The highest that George can suck water up a very long straw is2.0 m. (This is a typical value.)What is the lowest pressure thathe can maintain in his mouth? Hi does anyone know how to go about solving this problem? Notsure how to go about this. Thank you in advance for any help! The highest that George can suck water up a very long straw is2.0 m. (This is a typical value.)What is the lowest pressure thathe can maintain in his mouth? Hi does anyone know how to go about solving this problem? Notsure how to go about this. Thank you in advance for any help! Hi does anyone know how to go about solving this problem? Notsure how to go about this. Thank you in advance for any help!

Explanation / Answer

Pressure P given in terms of gravitationl constant g, density and height h is P= gh Plowest = Patm - P or Plowest = Patm-   gh Plowest = 1.01 x 105 - 1000 x9.8 x 2 Plowest = 81400 N/m2 (Pa) This is equal to 80.5 % of atmosopheric pressure

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