A a big bad Viewpoint tennis player strikes a little cute fuzzy tennis ball. The ball leaves the racket horizontally at 28.4 m/s. The ball hits the level ground a horizontal distance 20.0 m from start. How far above the ground is the fuzzy little tennis ball when it starts?

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.