No. Mechanical energy is not conserved. There's quite a bit of friction on the slide. So some of the potential energy is lost to heat on the way down, and the child arrives at the bottom with hot pants and less kinetic energy than you might expect.
Answer:
natural motion and violent motion
Explanation:
Answer:
Hello There!!
Explanation:
The answer is A. electromagnetic.
hope this helps,have a great day!!
~Pinky~
(a) At its maximum height, the ball's vertical velocity is 0. Recall that

Then at the maximum height
, we have


(b) The time the ball spends in the air is twice the time it takes for the ball to reach its maximum height. The ball's vertical velocity is

and at its maximum height,
so that


which would mean the ball spends a total of about 5.6 seconds in the air.
(c) The ball's horizontal position in the air is given by

so that after 5.6 seconds, it will have traversed a displacement of


Frequency and wavelength are inversely proportional.
A shorter wavelength implies a higher frequency.