Aparticle leaves the origin with a speed of 3.3 106 m/s at 34 degrees to the positive x axis. it moves in a uniform electric field directed along positive y axis. find ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron.

radiation

explanation:

heat is transmitted by radiation

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.

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one "light year" is the distance that light travels, through vacuum, in one julian year.   that's 365.25 days, of 24 hours each.