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A massive explosion occurs on the moon when a large meteor strikes. (a)lf the moon is 384,000 km away, calculate how long it will take

A massive explosion occurs on the moon when a large meteor strikes. 


(a)lf the moon is 384,000 km away, calculate how long it will take us to see the light from the explosion to reach us here on Earth if the light travels at 3.00x105 km/s. 


(b) If the speed of sound at 0C is 331m/s, how much later will we hear the sound from this explosion here on Earth? (You need not make any adjustments for temperature here.

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