savedbythebloodstain
savedbythebloodstain savedbythebloodstain
  • 25-11-2018
  • Physics
contestada

Why does water stay in a straw if you put your finger over it?

Respuesta :

crystallisa00
crystallisa00 crystallisa00
  • 25-11-2018

What's going on is that the water in the straw is pushed into the straw by the air pressure outside of the straw. As long as the pressure outside is able to overcome the force of gravity, the liquid will stay in the straw.


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