Conversion from kilometers to meters is just moving the decimal point three places to the right. 220 km = 220000 m
220km/s = 492,126 mph
1 km = 1000 meter 8 km = 8*1000 = 8000 m
(1 meter / second2) x (1 km / 1,000 meters) x (3,600 seconds / hour)2 =(3,6002 / 1,000) ( meter - km - seconds2 / seconds2 - meter - hour2)1 m/s2 = 12,960 km/hr2
30 km/s
1 meter=1000 millimeters
1 kilometer = 1000 meter
I'm assuming you mean 11.07 seconds. (100 m / 11.07 s) * (1 km / 1000 m) * (0.62 mi / km) * (3600 s / 1 h) = 20.16 mi/h
The currently measured value is about 220 km/s, which means, at its distance of 26,000 light-years from the center, the solar system takes about 220 million years to circle the Galaxy.
299792.458 km/s x 480 s ≈ 143,900,000 km
299 792.458 km s-1.This is not an approximate figure - it is exactly right by definition.If there was a tiny error it will be corrected by adjusting the meter !
100 centimeters.
Twenty cm-s higher than a metre, altogether 120 cm, or 1200mm (or 0.12 km).