Mach 1 was equivalent to 1224 kilometers per hour. Mach was a measure of speed. One Mach was one time the speed of sound. The speed of sound under standard atmospheric pressure and standard temperature was about 340 meters per second, which was 1224 kilometers per hour. Therefore, Mach 1 was equivalent to 1224 kilometers per hour.
Mach 1 was equivalent to 340 meters per second, which was equivalent to 0.34 kilometers per second.
One light-year was about 9.46× 10 ^12 kilometers. Light years referred to the distance that light traveled in a vacuum in a year. The speed of light traveling in a vacuum was about 299,792 kilometers per second. Therefore, the distance of one light-year was equal to 299,792 km/s x 60 seconds/min x 60 minutes/hour x 24 hours/day x 365 days/year, which was about 9.46 x 10 ^12 km. Light-years was a unit of distance in astronomy, often used to measure interstellar distance.
One light year was equivalent to 9.46 trillion kilometers. A light year was the distance that light traveled in a vacuum for one year. The speed of light was about 300,000 kilometers per second (299,792,458 meters per second), so one light year was 9,460,730,472,580,800 meters. Converted to kilometers, it was 9.46 trillion kilometers. The calculation of light years was determined by the speed of light and time.
One light year was equivalent to 9.461 trillion kilometers.
One light year was equivalent to 9.46 trillion kilometers. Light years were a unit of length used to measure the distance light traveled in a straight line in the vacuum of the universe in a year. According to the information provided, one light year was equivalent to 9.46 trillion kilometers. Light-years were calculated by multiplying the speed of light (about 300,000 kilometers per second) by the number of seconds in a year. Therefore, traveling at the speed of light would take about 300,000 years. Light years were a unit of measurement for the space-time distance between celestial bodies, not a unit of time.
One light year was equivalent to 9460730472580 kilometers. Light-years were used to measure large distances, such as the distance between the sun and another star. The specific conversion of light years was that 1 light year was equivalent to 9460730472580 kilometers (km).
The circumference of the Earth was about 40076 kilometers. This number was mentioned in many documents. The Earth's equator radius was about 6378.137 kilometers, the polar radius was about 6356.752 kilometers, and the average radius was about 6371 kilometers. These data supported the conclusion that the Earth's circumference was about 40076 kilometers. Therefore, it could be determined that the circumference of the Earth was 40076 kilometers.
One light year was about 9 trillion kilometers.
The distance between Gaobeidian and Baigou was about 36 kilometers.
Gaobeidian was about 210.9 kilometers away from Shijiazhuang.