If an anvil is dropped by Bugs Bunny and the total potential energy at the very top just before it being dropped is 500 J. How much mechanical energy does the anvil have? Impossible to determine, do not know the Kinetic Energy.

0 J

1000 J

500 J

EXPLANATION NEEDED

This is the number of complete movements of a wave per second.

Select the correct answer. what does the process of natural selection involve?

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.