Draw all Newman projections of 1-chloro-3-methylbutane as they rotate about the point of view indicated in the following drawing. Label them (anti, gauche, edlipsada) and place them in descending order of energy.

The speed of light can be used to measure the

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

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.