Mrs. Johnson's kid is trying to drink with a straw that runs through an airtight cork in the top of a bottle of water. Please explain to her kid why he won't get any water.
2 answers
straws operate because atomospheric pressure pushes the water up. A cork prevents that.
a straw works because when you lower the pressure on one end (by sucking), atmospheric pressure pushes the liquid from the other end
the airtight cork prevents the atmospheric pressure from pushing on the liquid, so it won't go up the straw
the airtight cork prevents the atmospheric pressure from pushing on the liquid, so it won't go up the straw
15 answers