The calculation of kinetic energy uses the formula, ke = 1 2 mv2. identify the unit that is required for mass and velocity, respectively, to determine the kinetic energy in joules. a) mass in g, velocity in m s b) mass in kg, velocity in m s c) mass in g, velocity in km hr d) mass in kg, velocity in km hr

So the answer  is B.  because the mass have  Kg as a international unit and velocity is m/s, they are  international units in physics.

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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