d) m/s is the right answer.
The universal physical constant c, or the speed of light in vacuum, is essential in many fields of physics. 299792458 m/s is the exact figure, which rounds up to m/s.
d) m/s is the right answer.
The universal physical constant c, or the speed of light in vacuum, is essential in many fields of physics. 299792458 m/s is the exact figure, which rounds up to m/s.