Suppose Galileo and his assistant were 1 km apart when Galileo uncovered his lantern to try to measure the speed of light. How long would it have taken the light signal to reach his assistant? A. 3.0 * 10^8 s B. 3.3 * 10^-9 s C. 1.0 s D. 3.3 * 10^-6 s

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Suppose Galileo and his assistant were 1 km apart when Galileo uncovered his lantern to try to measure the speed of light. How long would it have taken the light signal to reach his assistant? A. 3.0 * 10^8 s B. 3.3 * 10^-9 s C. 1.0 s D. 3.3 * 10^-6 s

Physics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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it is simple, since we have to apply this formula: \[t = \frac{d}{c} = \frac{{10 \times 3}}{{3 \times {{10}^8}}}\]
oops..I have made a typo, here is the right formula:
ok!

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Other answers:

\[t = \frac{d}{c} = \frac{{{{10}^3}}}{{3 \times {{10}^8}}}\]
we get 3.333333333E-6?
yes!
so our solution is choice D?
yes!
yay!! :) Thanks!!
:)

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