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Iwill give brainliest if you answer right : )

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm