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 relativisticmass becomes infinite. Hence the kinetic energy too becomesinfinite which is not practically possible
In addition to Mr. Al Cohen's Expert answer I will add that670,616,629 miles per hour equals about 11,176,943 miles per minuteor 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...
First light is not a mechanical wave and so its velocity will notbe affected by the speed of any material medium.
Yes. Sound energy is a carrier of energy.
well the speed of light travels at ~3x10 8 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=...
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 thelight barrier its not see able
Light travels very slowly in glass compared to water and vacuum
The angle of incidence, i, is the angle that the incident ray makeswith the normal line. The angle of refraction, r, on the otherhand, is the angle that the refracted ray makes with the normalline. The relationship between them is a sine i = b sine r where a and b are the constants known as the...
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...
Light travels at the same speed anywhere in space. Radio, heat, and X-rays also travel at that same speed. 299,792,458 meters per second 186,282 miles per second So it takes approximately 8 minutes for the light to travel from the sun to the earth. which is mighty fast.
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 isa constant.
Lightyears are not the speed of light. Lightyears are there tomeasure distance. One lightyear is the distance that light travelsin one year.
About 0.00005seconds in air. The spee of light in air is nearly 300000km/s. So, time required will be 15/300000\nseconds which is 0.00005.
a little less than an hour < guy that wrote that is stupid. 12.77 minutes(silvr90210's answer) it takes 8.352min from the sun to earth and about 4 more from earth to marz
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.
Light travels at a speed of 186,000 miles per second, in a vacuum.
Protons don't move in an electric circuit, it's electrons.
You'll see the beam of light move out ahead of you at the speed of light. Also, anybody in the path of the light from your headlights will see the beam of light from your headlights move past him at the speed of light, no matter how fast he may be moving.
You can reach the Sun in 8 minutes. Due to the speed of light, c = 3 · 10 8 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...
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, andall electromagnetic waves travel at the speed of light.
Yes it is a fact. Max speed possible is that of light
All colors/wavelengths/frequencies of light have the same speed in non-dispersive media such as vacuum or air.
This statement is never correct. The statement that is almost correct is that the speed of light is 3 x 10 8 m/s. The always correct one is that the speed of light in a vacuum is 3 x 10 8 m/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 .)
No. At best a reflection of light = an echo of light, will be as fast as the original source.
The refractive index of flint glass is 1.6, approx. This means that the speed of light in flint glass is 1/1.6 of its speed in vacuum. This makes it 187,380,000 metres per second.
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.
In all but very exceptional circumstances, no.
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 measuringdistances for a number of reason, but mainly because the distancesbeing 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 measure....
Speed of light is a lot faster than the electro-biochemical events that our brain runs on.
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)...
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...
I am pretty sure there are better ways (more accurate ways) tocalculate 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 needvelocity 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 us that . . . -- the...
3(10 ^10 ) cm/s (more or less)
First of all, its nose has to point in the direction of motion, or you don't get the answer you're fishing for. The contraction only occurs in the direction of motion. If the length of the ship is 100 meters in the reference frame in which it's at rest, and it then departs at 90% of the speed...
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 1,86,000miles per second
3. 1 in each mirror, and one reflected through one mirror and then the other. Note that the "middle image" is "correct" ... that is, it is not right-left inverted.
the energy needed to slow atoms down increases towards infinity the closer you approach the lower cosmic speed limit, 0 km/s > 0 atomic movement is absolute zero the energy needed to speed up atoms increases towards infinity the closer you approach the upper cosmic speed limit, 300 000 km/s > is...
Any fraction that you like.
Globally, from a macroscopic view, reflection has light (image)reversing direction, whereas refraction has light changingdirection. Refraction is dependent upon the frequency of light.
Yes, a photon moves at the speed of light, because photons have no mass.
Answer . \nThe accelerator is the speed regulator. Just push it harder to go faster.. Answer . \nthe governer can be removed by adding an ecu chip
The Speed of Light is 186,000 miles per second.
It is possible if there is a mirror in the car. If the driver can see your eyes through the mirror, then you can also see the eyes of the driver.
That would depend on the medium which the light is traveling through.
that is the perfect swing speed for the standard stiff shafted club. try the dynamic gold s300 shaft or the project x 5.5 or 6. the kbs tour stiff is good as well.
The number of years in a second... by definition!
If we put an astronaut into a spacecraft that leaves the earth at 1/2 the speed of light and continues at that speed, then he would cover the 4.4 light years distance to Proxima Centauri when our calendar reads 8.8 years later. Inside the spacecraft, at 0.5 the speed of light, it would seem...
From Wikipedia: The speed of light (usually denoted c ) is a physical constant. Its value is exactly 299,792,458 metres per second A nanosecond ( ns ) is one billionth of a second (10 -9 s). I think if you divide 299,792,458 by 1,000,000,000 you get 0.299792458 and that 0.299792458...
It may have experienced a change in frequency big enough to changethe type of electromagnetic radiation. or it just gets absorbed bya 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.
Speed of light in vacuum is 299792458 m/s or 983571056.43045 ft/s. Speed of sound in air of 20°C or 68°Fahrenheit is 343 m/s or 1125.32808 ft/s. You see that light is 874030 times faster than sound.
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.
As you mention light speed is constant. Light speed equals to its wavelength times its frequency. c = lambda * freq As the light source travels toward the observer, in such high speeds comparable to the light speed relative to the observer, the later emitted light waves pile up behind the...
Traveling at the speed of light (approx. 186,000 miles per second) the sun is about 93 million miles away and so it takes about 8 minutes to get there. Jupiter at its closest is about 360 million miles away. So, it should take approx. 32 minutes to get to Jupiter traveling at the speed of light.
no it's usless to measure it the microscope
Refraction . Although it appears broken or bent, it's actually not. Refraction is really the key word here.
The speed of light in a vacuum will always be approximately 299,792,458 meters per second. However, light travels at slower speeds when propagating through mediums. The speed of light in a medium is determined by the mediums index of refraction . The index of refraction is calculated using the...
Nobody did, as far as we know.
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.
The speed of light in a vacuum is the same, whether it goes to the Moon or elsewhere. By some theories, light travels at "c" relative to the local gravitational field. So if somewhere you found a gravitational field moving quickly, the light in that field might travel faster than the light in a...
According to Einstein's theory of special relativity, this is correct. His theory states that relative velocities correspond to differences in time. In simple terms, a "faster" moving object's clock will tick slower than a stationary object's clock. Thus, if one were traveling at close to light...
2,248,443,435,000 meters (this is with a more accurate measure of 299,792,458 meters/s)
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...
Perhaps coincidentally, the phrase "light speed" refers to a speed. It is a speed.
The purpose s to get attention, to make people no that there.
No, you can't it's impossible. No matter can go at the speed of light.
A model rocket reaches maximum velocity at the point where the thrust from the engine matches the drag from the air, or the point where the thrust goes to zero when the fuel burns out, whichever comes first.
You, and anybody watching you, would see the light leave yourheadlight at the speed of light ... 186,282 miles per second ... and travelaway from you at that speed.
The answer completely depends on what "close" means. There would be a big difference between 95% and 96%.
all electromagnetic waves travel at the same speed 3e8 m/s in a vacuum
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.
299792.458 is a number. You cannot use merely a number to talk about speed, it is utterly meaningless. Speed is distance per time. This could be metres/second or kilometres/hour or miles/hour or feet/minute. You may think this is silly. But your answer might be right in some unit (maybe kilometres...