A certain spaceship has a speed of 11800 mi/hr. What is its speed in light-years/century? A light-year is the distance that light travels in one year with a speed of 186,000 mi/s.
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Explanation:
1 lightyear = 9.3 ×10^12 km
1light year/ century = 9.3×10^10
speed of space ship = 11800miles/hr
= 11800×1.6km/hr
= 18880/9.3×10^10
= 2.03×10^(-7)light year/cent.
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