Change the following to celisus
a.-400f b.800f
please its urgent i will give u brainliest

What are the three ways that an object can accelerate

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?