7. Radioactivity affects elements that are unstable and tend to break apart easily. These elements often have the largest atomic numbers on the periodic table. Explain how this relates to the behavior of the
graph for the heaviest elements (those at the right end of the graph). (4 points)
of your

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

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.

How can you measure the amplitude of a longitudinal wave?