Unanswered | Answered

Speed of Light

Parent Category: Physics
Denoted with the symbol "c," the speed of light is 299,792,458 metres per second and is often rounded as 300,000 kilometres per second or 186,000 miles per second.
As the material body travels at the speed of light its relativistic  mass becomes infinite. Hence the kinetic energy too becomes  infinite which is not practically possible
In addition to Mr. Al Cohen's Expert answer I will add that  670,616,629 miles per hour equals about 11,176,943 miles per minute  or 186,282 miles per second.
Any incident ray traveling parallel to the principal axis of a converging lens will refract through the lens and travel through the focal point on the opposite side of the lens.Any incident ray traveling through the focal point on the way to the lens will refract through the lens and travel parallel...
Yes. Sound energy is a carrier of energy.
well the speed of light travels at ~3x108 ms-1 (300000000ms-1 ). Now if we take the distance from Paris to Mumbai to be 7009.94km then all we need to do is convert 7009.94km into metres. 1km = 1000m, so 7009.94km = 7009940m now we have a distance and a speed, so we can use speed= distance/time and...
Need clarification please. The "it" you are referring to seeing, does that represent; A) the flashlight, B) the light from the flashlight, or C) "the speed of light"? Did you mean to imply that the flashlight was switched on? Is it an "old fashioned" bulb, an LED bulb, a laser light, or some other...
Check the fuse box for wiggling fuses, also make sure that the harness is sitting tight.
Lights moves so fast it can be seen. Once somethings outside the  light barrier its not see able
Light travels very slowly in glass compared to water and vacuum
If you manage to travel at the speed of light, it will take you exactly 0 (zero) seconds to travel through the galaxy (in your reference frame). At speeds near the speed of light, "length contraction" causes distances to shrink. AT the speed of light, length contracts to nothing. Unfortunately for...
No. Speed of light is an incredible one.
Using miles per second as the unit, that is the (approximate)  value. 186000 miles/sec would be a little closer. Speed of light is  a constant.
Lightyears are not the speed of light. Lightyears are there to  measure distance. One lightyear is the distance that light travels  in one year.
About 0.00005seconds in air. The spee of light in air is nearly 300000km/s. So, time required will be 15/300000   seconds which is 0.00005.
Yes it is constant. It never stops moving.
Because the molecules of glass are more conjusted so, light travels slow in glass.The molecules of air are spread in the atmosphere so, light has a wide way to travel in the air. They are two mediums (air and glass), their speed of light vary.
Protons don't move in an electric circuit, it's electrons.
300 000 000 m/second
You can reach the Sun in 8 minutes. Due to the speed of light, c = 3 · 108 m/s, and the distance between the Sun and us, 150 millions of km), it is inmediate to estimate, more or less, than the light that come from the Sun reaches the Earth in 8 minutes. From this fact it arises something curious...
In ways Soccer can be a form of acceleration however it depends onthe ways people think about it, such as maybe PI but its all onwhat you think.
Yes. Radio signals and light are both electromagnetic waves, and  all electromagnetic waves travel at the speed of light.
Yes it is a fact. Max speed possible is that of light
This statement is never correct. The statement that is almost correct is that the speed of light is 3 x 108m/s. The always correct one is that the speed of light in a vacuum is 3 x 108m/s The speed of light through anything other than a vacuum is less than c.
Light waves are transverse electromagnetic waves.
No one really knows but you should invest in it because I have a lot of regrets to fix. But not to my knowledge has really tried with that but go for it.
Pretty close ... that figure is about 99.85% the speed of light. (You used 186,000 miles per second. We used 186,282 .)
Yes it is..Therotically no object can move in the speed of light.But now scientists are trying to find the conditions for which a particle can move in the speed of light. No, anything massless can (and must!) move at c. No object carrying mass can ever move at c.
The speed of light cannot be measured IN A WAY. However it travelsat 1,079,252,848.8 miles per hour or 299,792,458 meters per second.It cannot be measured however the numbers I showed is one way.Light cannot have a specified measurement, unless the light sourceis big or small etc...
Even at modest %'s of the speed of light objects start to radiate their energy away in Gravitational Waves. So it is very expensive to approach the speed of light when most of your effort is just radiated away.
Yes it is.Becuse it is the upper limit of speed, i dont know the reason.
Astronomers don't use the speed of sound as a basis for measuring  distances for a number of reason, but mainly because the distances  being measured are quite large. The speed of light (300000000 m/s)  is about six times faster than the speed of sound (~343 m/s),  making it a better unit of...
The speed of light (usually denoted c) is a physical constant. Its value is exactly 299,792,458 metres per second, often approximated as 300,000 kilometres per second or 186,000 miles per second. It is the speed of electromagnetic radiation. (such as radio waves, visible light, or gamma rays) in a...
Some kinds of "entangelment" could be considered to be faster than light. There are theoretical particles , tachyons, that have speeds faster than light. energetic particles can move faster than light in the surrounding medium (not faster than C the speed of light in a vacuum) however. The bluish...
I am pretty sure there are better ways (more accurate ways) to  calculate the speed of light.
The speed of the light is 3.10^8 miles per second.what is the speed in miles per hour
Light travels at approximately 186,000 miles per SECOND. That is fast. So the expression "faster than the speed of light" is used to describe someone or something that is really fast (but it's not actually faster than speed of light)
Answer #1:   To calculate the distance that light travels in water, we need  velocity and time.   Velocity and time will enable us to correctly compute the distance.   ===============================   Answer #2:   The "refractive index" of water is around 4/3  (look up). This tells...
3(10^10) cm/s (more or less)
the speed of light is massively faster than the speed of sound. think about when you see lightning off in the distance, first you see the light, then a few seconds later you here the sound. Light travels at 300,000,000 meters/second, sound on the other hand travels at 340 meters/second, thus light...
Hope speed is needed in miles per second. Its speed is 1,86,000  miles per second
Any fraction that you like.
Globally, from a macroscopic view, reflection has light (image)  reversing direction, whereas refraction has light changing  direction. Refraction is dependent upon the frequency of light.
Yes, a photon moves at the speed of light, because photons have no mass.
  == Answer ==     The accelerator is the speed regulator. Just push it harder to go faster.   == Answer ==     the governer can be removed by adding an ecu chip
The Speed of Light is 186,000 miles per second.
That would depend on the medium which the light is traveling through.
The number of years in a second... by definition!
It may have experienced a change in frequency big enough to change  the type of electromagnetic radiation. or it just gets absorbed by  a particle as heat
There is insufficient information for us to even begin to understand this question. Please edit the question to include more context or relevant information.
In a vacuum, the speed of light is 299,792,458 meters per second, which is roughly 300,000 km/second or 186,000 miles/second.
Because we can't perceive the length of time that light takes tocover any distance that we can watch. Example: Let's say that we can tell the difference between two things thathappen 1 / 100 of a second apart. In that amount of time, light travels 1,863 miles,like the distance from Seattle to...
The speed of light = 186,282.397 miles per second in a vacuum.
No! The speed of thought is not faster that the speed of light. The reason emerges from the fact that information travels as electrical pulses between neurons in the brain's neural network. So, given the complexity of such a network in addition to the delay and attenuation of the electrical pulses,...
The purpose s to get attention, to make people no that there.
Recent experiments at CERN suggest that neutrinos travel faster than light, but this experiment has not been replicated anywhere else and needs significant backing before it is to be accepted as a phenomenon.
The speed of light(roughly 186,000 Miles per second) is a universal constant.
the speed of light in vacuum is 300,000km / s, the speed of sound  in air is 340m / it s approximately thus dela light speed is far  greater than the speed of sound (in any medium)
well the speed of light is roughly 186000 miles/second so you would be about 22766400000 miles away
Answer     In vacuum, the speed of light is 186,282.397 miles per second.     Answer   The speed of light is not a constant. It is slowing down. zthere have been several experiments that prove that light is slowing down.186,282.4 miles per second.
A. A. Michelson was not interested in measuring the speed of light.   He only measured how it changes if you  move toward the light, away   from it, or sideways. (It doesn't.)
  The light bends away from the normal and then the light will speed up!!!!
The speed of light, in wave or particle form, travels at approximately 300,000,000 meters per second in a vacuum. Although this speed remains constant, the frequency and wavelength are subject to change. These difference account for various colors of visible light.
The scientific notation for the Speed of Light is lowercase "c".
A. A. Michelson was not interested in measuring the speed of light.   He only measured how it changes if you  move toward the light, away   from it, or sideways. (It doesn't.)
because nothing is faster than light. for example let's say it's a clear night and you have a flashlight with you if you take your flashlight and aim it at the moon it would reach the moon in 8 minutes, try to see if you could get to the moon in 8 minutes
The speed of light in a vacuum is 299 792 458 meters per second or 983,571,056.43045 feet per second or 186,282.397 miles per second or 670,616,629.2 miles per hour.
The Speed of Light is considered infinite speed, as no matter can reach the speed of light.
Normally its a lowercase c, as in E=m(c) 2 . Energy=mass times the speed of light squared.
no. it is simply impossible to fly at the speed or light. the only thing in this galaxy that can move at the speed of light is light. othewise it is phisically and croneologically impossible.
According to Einstein's special theory of relativity, mass can be converted into energy, and is given by the relation E=mc2, where c is the velocity of light. From the question, the object thus will be converted into energy
A medium with a higher index of refraction, like diamond, is more dense than the medium with a lower index of refraction, like air. If the ray of light is moving from the less dense medium (lower index of refraction), to a more dense (higher index of refraction) the ray of light bends TOWARDS the...
  As much as we've tried, no one's yet found a loophole in the equations. Regardless of its rest mass, pushing a chunk of matter to the speed of light would result in its acquiring infinite mass, and thus requiring an infinite amount of energy to put it "over the top." Einstein may not have...
If your meaning "what is the clearest image produced by lens?" It would be a microscope, if not I'm not sure what you mean... :/
Nobel Peace prizes are awared to those who have "done the most or  the best work for fraternity between nations, for the abolition or  reduction of standing armies and for the holding and promotion of  peace congresses". Not for  discoveries in physics. There is a separate Nobel prize for ...
It is 300,000 kilometres per second.
the speed of light is 300,000 kilometers per second. and if you ask about how far the sun is from earth that would be 150,000,000 kilometers so in calculation that would mean it would take just about 8 minutes and 17 seconds for the suns light and heat to travel to the earth. now imagine the earth...
According to Wikipedia, the symbol c, for the speed of light, originates from the Latin word celeritās, for speed.
Glass In naturally occurring media the slowest speed occurs in diamond at well under half c. Look up its refractive index, it is the highest.
Light will slow down if it goes through just about anything that is not a vacuum, for example air, glass, water.
That can be light, or some other electromagnetic wave (light is an  electromagnetic wave), or gravitational waves.
No the Energy of the light doesn't change when it passes through rarer to denser medium. Only Wavelength changes which cause change in its direction. Since Frequency is directly proportional to the Energy and frequency is constant during refraction therefore the energy also remain constant.
Speed of Light Speed of Sound: 330m/s Speed of Light: 299 792 458m/s
  The easy answer is no. The more complicated answer is...let's look at the question later when we know much more about the universe.   The reason for believing it is impossible is that the kinetic energy of a mass become INFINITE at the speed of light. There are known particles (cosmic rays)...
As far as we understand physics today, we won't ever be able to get to the speed of light. The faster you go, the harder it gets to go any faster. So that last little fraction will "always" remain impossible - or at least until someone invents a whole new branch of physics.So the only ships that can...
approx 186 000 miles x 5280 feet per second
      Answser: 431.277173 miles/sec    Answer: As far as I know, it doesn't make much sense to calculate  the square root of a speed. If you do calculate the square root of  a speed, the answer will definitely not be in miles/second, but in  root-miles per root-second... whatever...