The approximate travel time to reach a star that is 120 light-years from Earth is 10.34 years.
Explanation:
To calculate the approximate travel time to reach a star that is 120 light-years from Earth, we can divide the distance by the speed of light. The speed of light is approximately 3.0 x 10^8 m/s. So, the travel time is approximately 120 light-years/ (3.0 x 10^8 m/s) = 4.0 x 10^8 s.
Now we need to convert the time from seconds to years. There are approximately 3.16 x 10^7 seconds in a year. So, the travel time is 4.0 x 10^8 s / (3.16 x 10^7 s/year) = 12.66 years.
Therefore, the approximate travel time to reach the star is 12.66 years, which is closest to option B) 10.34 years.
Explanation:
To calculate the approximate travel time to reach a star that is 120 light-years from Earth, we can divide the distance by the speed of light. The speed of light is approximately 3.0 x 10^8 m/s. So, the travel time is approximately 120 light-years/ (3.0 x 10^8 m/s) = 4.0 x 10^8 s.
Now we need to convert the time from seconds to years. There are approximately 3.16 x 10^7 seconds in a year. So, the travel time is 4.0 x 10^8 s / (3.16 x 10^7 s/year) = 12.66 years.
Therefore, the approximate travel time to reach the star is 12.66 years, which is closest to option B) 10.34 years.
