Divide the distance traveled by the time it took:
(100 m) / (4.2 s) ≈ 23.8 m/s
It's gravitational potential energy at the top will roughly equal it's kinetic energy when it was released (a little is lost to air resistance). Note this will assume the release point is zero potential energy. (we are free to define it that way, just letting you know). Gravitational potential energy is mgh.
mgh=25J
h=25J/(0.5kg x 9.81m/s^2) = 5.097m
So it goes about 5.1 meters above the point where it was released
Answer:
B. 4a
Explanation:
Force between the charges is inversely proportional to the square of the distance
=> Force will be 4 times and acceleration will be 4a
=> Answer b).
Answer:
Thank you for posting your question on Brainly.
Explanation:
The waves from highest to lowest are :
* Gamma
* X- Rays
* UV
* Visible
* Infrared
* Microwaves
* Radio-waves
I really hope this was helpful. Have a great day : )
Potential energy is when the roller coaster rises. Kinetic energy is when the roller coaster declines.
