km/sec

abbreviation for

1. kilometers per second.

Example Sentences

From these 7.2 million stars, the team looked for encounters where ‘Oumuamua passed close—less than six light-years—and at a velocity of less than 30 kilometers per second, suggesting it may have originated there and was not instead just passing by. This analysis yielded four candidates from the initial batch, all dwarf stars. ‘Oumuamua came closest to a star called HIP 3757 at a distance of about 1.96 light-years, but at a relatively high velocity of 25 km/sec.

From Scientific American

It passed a second, HD 292249, at a distance of five light-years but at just 11 km/sec.

From Scientific American

Whatever the reason for the flicker, information on when to turn on and off can cross Cyg X-l no faster than the speed of light, 300,000 km/sec.

From Literature

Another video gives a still more precise figure of 299792.458 km/sec.

From Forbes

This is possible," explains Massachusetts Institute of Technology geophysicist M. Nafi Toksoz, "because seismic waves propagate through the earth's crust relatively slowly, 5 to 8 km/sec.

From Time Magazine Archive