Light travels at a constant speed of 3.0 x 10^8 m/s in a vacum. (a) It takes lig

Question

Light travels at a constant speed of 3.0 x 10^8 m/s in a vacum. (a) It takes light about 1.3 seconds to travel from the Earth to the Moon. Estimate the distance of the Moon from the Earth's surface, in meters. (b) The astronomical unit (bbreviated AU) is equal to the distance between the Earth and the Sun. One AU is about 1.5 x 10^11m. If the Sun suddenly ceased to emit light. how many minutes would elapse until the earth went dark?
a: ______ m/s
b: _______ min

If someone can break this down, I'd appreciate it!

Explanation / Answer

a) multiply speed of light by time to get distance 3.0*10^8 * 1.3

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