After two days, was there a difference between the water in the two containers? If so, explain why.

Yes

Explanation:

yes

Explanation:

small amounts of carbon dioxide dissolve into the water. This forms carbonic acid, which may lower the pH just slightly. small amounts of other gases, like acetone and aldehydes, may dissolve in, too.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.