Fa ball is tossed straight up into the air, at what position is its potential energy the greatest?

when it approaches the top of its flight

when it begins to fall back to your hand.

when it first leaves your hand

when it reaches the top of its flight

Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.