Speed of Light

The speed of light in a vacuum is 186,282.397 miles per second or 670,616,629.2 miles per hour.

No, the speed of light is the speed at which a photon (the particles that make light) travels. While frequency is the number of times per a unit of time a wave cycles from peak to peak. Different frequencies produce different colours.

No.

Things (with mass) cannot be accelerated to the speed of light (or beyond) under any circumstances. That's because as an object is accelerated and its velocity approaches that of light, the energy used to increase its velocity is converted into mass. The more energy that is added to the object in an attempt to push it to the speed of light, the more mass it gains. "Mass gain" prevents further acceleration of the object and precludes it ever reaching the speed of light. Einstein's special theory of relativity states that an infinite amount of energy would be required to accelerate beyond the speed of light (c) because the object would be infinitly large. However gravity drives (warp drive) and wormholes would provide the means to travel faster that light by using spacial distortion.

If you meant optical density by the term 'denser ' Then the answer is....

The light bends towards normal when it travels from a optically less dense medium to optically dense medium. So angle of incidence is greater than the angle of refraction

Fill a glass with water. Put a straight rod or pencil into the water at an angle. You see an apparent bend in the straight rad. This is caused by the different indexes of refraction of air and water.

The speed of light in vacuum is 299,792,458 m/s usually rounded to 300,000 km/sec.

The speed of sound at sea level is 343 m/s.

The difference is 299,792,115 m/s.

That's 99.999 886 % of the speed of light, and may also be rounded to 300,000 km/sec.

probably your battery is going bad - but could be the alternator as well.

Actually, the redwood forest is located mainly in California, not on the map.

Olaus Rømer explained the apparent incorrect timing of the eclipses of the Jovian satellites by the speed of light.

Hello, Jamison here, Something is wrong with the charging system,,,, Most likely the alternator,,,,,, Good luck, Jamison

if we reach the speed of light our mass start converting into energy according to the mass energy relation when a particle accelerated it must radiate energy. and therefore the mass convert into energy as the velocity increase . relative mass (at velocity =v)=mass/1-v(power2)/c(power2) relative mass is present mass of object at tht velocity. then mass at (rest present mass )c (power2) why it is impossible for a particle too have a speed of light

A vacuum

The speed of light is 186,000 miles per second in a vacuum.

The refractive index of air is about 1.0003, and of quartz about 1.45, so

quartz is the more "optically dense" medium in this situation.

When light goes from a less dense medium to a more dense medium, it is

refracted toward the normal. The normal is the imaginary line perpendicular

to the surface where the light enters.

Please note that there are individual differences, between different liquids, or between different solids. But as a rough guideline, you can expect light to be fastest in the materials that are less dense - and also as a rough guideline, solids are often more dense than liquids, and liquids are almost always more dense than gases. However, there is a lot of overlap between solids and liquids - check the Wikipedia article "List of refractive indices" for some examples.

It's all about the photons. Light is photons, technically they're a waveform and a particle but for simplicity's sake, let's call it a particle. In order to "see" something, a photon must strike the object, reflect off and strike your eye. The Sun spits out countless photons all the time. Trillions are reflecting into your eyes every moment. At night, with the Sun on the other side of the Earth, not as many reach your eyes, which is why it is dark and you cannot see very well. The reason you can see inside that open room in the day is simply because there are more photons reaching that room and subsequently your eyes. Not to go too off-topic but eyesight at night is more sensitive to photons than in the day, since at night rod cells take over which are much more sensitive to photons than cone cells (Which unfortunately forces us to have little to no color vision at night due to the way rods are "wired"), which is why spending a lot of time in a dark room and suddenly going into an area with a lot of light is quite painful.

Depends what you mean by "succeed."

Michelson did several measurements of the speed of light, using some of the best insturments of his day, and came up with a number within about 0.1% of the presently accepted value. I'd call that a "success."

Answer to your question YES.Actualy a EGR valve doesn't reallystart working until you get up to higher speeds. At idel and slowerspeeds it's not active. So if something is wrong with it weatherit be EGR senser bad diaphragm orvacum hose the problem will showupat lower speeds and idle. It actually causes a vacum leak wichyou wouldn't notice at higher RPM's. It cuases your engine to run to lean making it run bad atlower RPM's. Hope this brings some light on this for ya.

Depending what you mean, it may be precisely the speed of light. If you add velocities at relativistic speeds (i.e., close to, or equal to, the speed of light), you can't do the simple addition; you need special formulae, which result in speeds that never exceed the speed of light. For more information, the Wikipedia has an article on "velocity addition".

It's 1/0.8 = 1.25

The speed of light in gas (like air) is approximately 299,792 kilometers per second. In air at sea level, the speed remains the same as the speed of light in a vacuum because air does not significantly affect the speed of light due to its low density.

No. Light slows down whenever it passes through water. Nothing is faster than the speed of light in a vaccum.

Excellent question! It appears you're trying to connect the frequency of a wave to its velocity through the medium in which it's traveling, and you'll need to uncouple them. Let's look at some things to help you do that. If you've stood alongside a roadway and watched (and listened to) cars coming at you, you notice the pitch is higher as the vehicles approach, then lower as they pass and move away. The air is not moving toward you (unless you are way too close), and the sound is not coming at you "faster" and then "slower". The sound is traveling through the air at the same rate no matter which way the vehicle is moving. Here's what's happening. Sound comes from the source in the form of waves, moving out like an expanding bubble. When the vehicle is coming toward you rapidly, the vehicle shortens the gap between the siren and the next wave. The gap shortens because the sound only travels so fast and no faster, but the vehicle is catching up a little before the next wave comes out. This keeps happening, and if you could see the waves, you would see them bunching up together. The waves are closer. This means that there are more waves in one second's worth of sound. The frequency of sound waves is what gives rise to our experience of pitch. Higher frequency equals higher pitch. You can see what happens when the vehicle recedes. The sound is still traveling at the speed of sound, but because the vehicle is moving away, this has the effect of putting more space in between the waves of sound. there are fewer waves per second as the vehicle moves away from you; the sound hasn't changed velocity. Lower frequency equals lower pitch. It is essentially the same with light. Light, of course, does not need air or any other substance to travel through as sound does. But the light is not speeding up or slowing down. You are seeing either the "bunching up" of light waves or the "thinning" of the waves, depending on which way the object is moving. Think about it this way too. When you see light of various colors around you, you aren't imagining the different colors coming at you at different velocities, right? They all travel at the speed of light.