Answer:
What part of the light wave is related to the brightness of the light?
Amplitude
The amplitude of a wave tells us about the intensity or brightness of the light relative to other light waves of the same wavelength
The brightness of light is related to intensity or the amount of light an object emits or reflects. Brightness depends on light wave amplitude, the height of light waves. Brightness is also somewhat influenced by wavelength.
Answer:
In order to hit the same point with the second ball, you should throw it at an angle of 18° above the horizontal.
Explanation:
Horizontal reach formula for projectiles tells us
where 
is the initial velocity and 
the angle above the horizontal.
Since for both shots the reach must be the same, we have
.
Heosndıxnzjdndkdnfmfmfjfmcbvdkfmdj ı dont under stand but ı am dont write
I think it’s C but not sure..
