Question

Light travels at a speed of 3.00 x 10^10 cm/sec. What is the speed of light in km/hr?

Answer 1

1.08^9km/hr

Explanation:

3 x 10^10cm/ 1s

(3 x 10^10 ÷100÷1000)km / 1÷60÷60

=1.08^9km/hr

Answer 2

100 centimeter = 1 meter

1000 meter is 1 kilometer.

so speed is 300000 kilometer/second.

Explanation:

There are 3600 seconds in one hour, multiply with 3600=

1080 000 000 kilometer/hour.