Easy 15 points
in july 2013, the spacecraft messenger was near mercury at a distance of 9.75 ×...
Mathematics, 03.10.2019 10:30 makiahlynn5642
Easy 15 points
in july 2013, the spacecraft messenger was near mercury at a distance of 9.75 × 10^7 km from earth.
taking the speed of light to be 3 × 10^8 m/s,
(a) work out how long it takes light to travel a distance of 9.75 × 10^7 km.
plz answer as quickly as possible.
Answers: 3
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