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Our galaxy, the Milky Way, has a diameter of about 100,000 light years. How many years...

Our galaxy, the Milky Way, has a diameter of about 100,000 light years. How many years would it take a spacecraft to cross the galaxy if it could travel at 99% the speed of light?

A. 1.8 × 103 yrs

B. 1.4 × 104 yrs

C. 7.2 × 103 yrs

D. 1.0 × 105 yrs

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