lightgrav-
Your method would work if I knew the cross-sectional area. We arent given the cross-sectional area. All we are given is how high can the straw be. We have no other information.
I need to figure out the highest possible height that water can be sucked up into a straw on Earth. You have unlimited water.
So far I've figured out that when you suck, you create a vacuum that allows the water to rise up due to the atmospheric pressure and the force is creates pushing down...