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The speed of anything is
(the distance from point-1 to point-2) / (the time it takes that thing to travel from point-1 to point-2)
Consequently, we may write, without fear of confrontation or contradiction,
that the speed of light is
(the distance from point-1 to point-2) / (the time it takes light to travel from point-1 to point-2)
Moreover, after literally centuries of observation and experimentation, by giants
upon whose shoulders we now stand, we are able to write that speed. If there
is no material substance between point-1 and point-2, then the speed is
299,792,458 meters (186,282 miles) per second.
If there IS material substance in that space then the speed is somewhat less,
and varies depending on the substance.
It is never more.
What else can I help you with?
What is A unit of measure that people agree to use?
is meant by measurement in che mistry
What are the si units for a wave speed?
meters per second
What are two units of measure for speed?
In order to measure speed, a unit for distance and a unit for time must be used. Common units with which speed is expressed are meters per second (m/s), miles per hour (mph), and kilometers per hour (km/h).
What is unit for speed if the time is measured in hours and the distance is measured in miles?
You can use ANY unit of speed - but the logical unit of speed in this case would be the one you obtain by dividing the specific unit of length by the specific unit of time, so in this case, miles per hour.
Voltage is measured in what unit?
This unit is called volts.
What is the standard unit for the speed of light and how is it defined in the field of physics?
The standard unit for the speed of light is meters per second (m/s). In the field of physics, the speed of light is defined as the constant speed at which light travels in a vacuum, which is approximately 299,792,458 meters per second.
What is the si standard unit for measurement or lengths?
Its based on the speed of light.
What is metric unit and English standard unit for speed?
The SI derived unit for speed is meter per second, m/s. The English standard unit for speed is feet per second, ft/s.
What is the standard unit for measuring the brightness of light, known as the kwe unit?
The standard unit for measuring the brightness of light is called the candela (cd), not the "kwe" unit.
what is the standard unit of light intensity?
lux
How many g's is the speed of light?
speed of light is constant velocity and does not accelerate so there is no g force
How is the unit lightyear measured?
It's calculated, not measured. It's the speed of light ... 299,792,458 meters per second ... multiplied by the number of seconds in a standard year.
What is the standard units of velocity?
Velocity is speed and its direction. The units of velocity are any unit of speed and any means of indicating a direction.
What is international standard of length?
The international standard of length is defined by the meter, which is the base unit of length in the International System of Units (SI). It is currently defined in terms of the speed of light in a vacuum, where the meter is the distance that light travels in a vacuum in 1/299,792,458 of a second.
What is the speed of light in units of c?
The speed of light is equal to 1 unit of c, where c is the speed of light in a vacuum, approximately 299,792 kilometers per second.
Which mectric unit would be used for the speed of light?
lightyear.
What is the unit that astronomers most often use to express the wavelength of light?
Speed of light
