You and two of your friends go to the movies. Each ticket cost $7.50. You share the cost of the popcorn. If each person pays $9.
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1) The total distance the light has to cover to go from Earth to the Moon and back is twice the distance between the Earth and the Moon:
2) Given the relationship
where
is the speed of light, S the total distance covered calculate at point 1), and t the time, we can find the time the light needs to go from Earth to the Moon and back again:
1) The total distance the light has to cover to go from Earth to the Moon and back is twice the distance between the Earth and the Moon:
2) Given the relationship
where