Final answer:
During one day of its orbit, the Moon travels approximately 8.6 x 10⁴ kilometers. This is calculated by dividing the total orbit distance by the orbit period, resulting in the answer A. 8.6 x 10⁴ km.
Step-by-step explanation:
To calculate how many kilometers the Moon travels during one day of its orbit around the Earth, we need to divide the total distance of its orbit by the number of days it takes to complete the orbit. The Moon's orbit distance is about 2.413 x 105 kilometers, and it takes approximately 28 days to orbit the Earth.
The calculation for the distance the Moon travels in one day would be:
- Divide the total distance by the number of days:
- 2.413 x 105 km / 28 days = 8.61875 x 103 km/day
Thus, during one day of its orbit, the Moon travels approximately 8.6 x 104 kilometers, which can be rounded to one significant figure. Therefore, the correct answer is A. 8.6 x 104 km.