Which of the following results from the fact that a free-market system is based on the free choices of consumers and producers?

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

If element x has 99 protons how many electrons does it have

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.