When two are brought close enough together, electrons leap across the gap, causing a spark and canceling out the charge imbalance.

Astate of matter all that has define volume and can flow is a(n)

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.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?