suppose car 1 collides with car 2; car 2 was not moving. in an ideal situation with no friction, according to the law of conservation of momentum, what happens to the momentum within this system after the collision?
a) it remains the same.
b) it is greatly reduced.
c) it is slightly reduced.
d) it is slightly increased.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle