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The speed of light is about 183,000 miles per second, or just under 300,000 kilometers per second. Radio transmissions, which travel at the speed of light, can go from the earth to the moon in under two seconds, but it would take them almost nine minutes to reach the sun. As far as distance, no one has ever theorized that light stops traveling, if unimpaired by a solid substance. It's presumed that it can travel to the known edges of the universe, but it can take it billions of years to get there.
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What speed to em waves travel?
speed of light
How far does light travel in the time it takes sound to travel 1 cm in air at 20 C?
Based on the speed of sound being 340 m/s and that of light being 299,792,458 m/s. we get the speed of light being ~881,742 times that of sound. So if sound goes 1cm then light will travel 881,742 cm or 8,817.42 m.
How far does light travel in a femtosecond?
Femtosecond= 10^-15 secondDistance= Speed x time(10^(-15)) x the speed of light = 2.99792458 × 10-7 m / sOr about 300 nanometers.
What speed do electromagnetic waves travel?
the speed of lightspeed of light
Why do waves of different wavelengths travel at the same speed?
All light travel at the same speed.
The light year is measured by?
how far u can travel at the speed of light in a year
What is the distant of a light year?
It is the equivalent of how far light can travel at the speed of light in one year.
How far does the speed of light travel after an hour?
Speed doesn't travel. Light travels.Light goes about 300,000 km in a second; in an hour, it goes 3600 times as far, since an hour has 3600 seconds.
Is it possibie to travel at the speed of light?
Nothing with a rest mass can travel at exactly the speed of light, it would take an infinite amount of energy. Light can travel at that speed because it has zero rest mass. Earlier Answer below So far, we don't know if a human can travel at lightspeed. However, it's easier to travel at the speed of light than to travel through time. New Answer: The problem I always had with the term light speed is that speed is relative. We may be traveling close to the speed of light right now in relation to some other object in the universe.
What is the difference between light year and light min?
A light year is how far light travels in a year. A light min is how far light travels in a minute. light speed is 186000 mile/sec, at this speed you have to calculate how far it would travel in one year or one minute
Is it possible to breach the speed of light?
As far as is known nothing with mass can travel at the speed of light. There are 'things' that exceed light speed, such as wave guides, but mass or information cannot do so.
What do you need to travel at the speed of light?
There is no way to travel at the speed of light.
Is it possible to travel at the speed of light in water?
The speed of light in water is less than the speed of light in space. Only light can travel at the speed of light.
Can a person travel at a speed of light?
No. Nothing with mass can travel at the speed of light.
If there is a speed of light what is the speed of dark?
Dark does not exist, it is only the absence of light. Darkness is not an entity, so it does not travel and has no speed. In principle, a shadow or nonentity could "travel" faster than the speed of light. For example, if you pivoted a powerful laser a few degrees the point of light would travel across a screen very far away at a "speed" greater than light. Note that this is not at all faster than light motion. You could achieve a similar effect by casting shadows on things very far away. But none of this is actually a "speed."
How far in Light years can a Pulsar travel?
As far as light can travel
Does red light travel longer that the gamma ray?
All electromagnetic waves travel at the speed of light. How far they travel depends on when or whether they hit an object that they cannot pass through.
