Assuming that the final particles in each case are more stable than the initial particles, which of the statements regarding fission and fusion reactions is true? both fusion and fission can release or absorb energy. both fusion and fission absorb energy. fusion releases energy and fission absorbs energy. fusion absorbs energy and fission releases energy. both fusion and fission release energy.

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.