Answer :
Final answer:
The speed at which the Sun revolves around the Milky Way is approximately 220 km per second.
Explanation:
The question is asking for the speed of the Sun as it orbits the Milky Way. The way to solve this is to first find out the distance the Sun travels. The Milky Way galaxy has a diameter of about 100,000 light years. Since we know that 1 light year is approximately 9.461 trillion kilometres, we multiply these numbers to get the total distance in kilometres that the Sun travels.
Next, to find out how long it takes the Sun to travel that distance, we convert the time it takes to orbit the Milky Way from years to seconds. Since 1 year equals to about 31,557,600 seconds, we multiply this by the number of years.
Finally, to find the speed, you divide the total distance by the total time. This results in the Sun's speed being approximately 220 km per second. Therefore, the answer to the question is (a).
Learn more about Sun's Speed here:
https://brainly.com/question/32253976
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