how fast does light travel two sig figs
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- Making the world better, one answer at a time. The speed of light is 299 792 458 m/s To 3 significant figures will just be 3.00 x 10^8. The speed of light is <b>299 792 458</b> m/s To 3 significant figures will just be 3.00 x 10^8. Minor edit?
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Visible Light Ultraviolet radiation has waves with shorter wavelengths than do blue or violet light, and thus oscillates more rapidly and carries more energy per photon than visible light does. Light travels at the incredible speed of 299,792.458 kilometers per second (about 186,282.4 miles per second). At this amazing speed, light could circle Earth more than seven times in one second!
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How Many Times Can Light Go Round The Earth In One Second? Asker's rating. 1  At the equator, maybe close to 7 times, if 5 miles from either of the 'poles', could be many, many thousands of times. Just a theory. 2  About 7. Speed of light is 186,282.4 miles per second; Earth's circumference is about 24,980 miles; 3  Seven. Ray;mond · 1 year ago. 4  At the altitude of 1,000 miles = 7. Ronald 7 · 1 year ago.
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- Light travels at approximately 300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water (refractive index = 1.3; see Figure 1) and 200,000 kilometers per second in glass (refractive index of 1.5).hen light traveling in a vacuum enters a new transparent medium, such as air, water, or glass, the speed is reduced in proportion to the refractive index of the new material.
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How many miles does light travel in one minute, in one hour, in one day? The speed of light is 186,282.397 miles per second. In each case, this would be the time for a radio signal to travel these distances. Source(s): Speed of light at http://en.wikipedia.org/wiki/Speed_of_li... 1AU is 92,955,887.6 miles. It is the distance from the Earth to the Sun.
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Refracting Telescopes Light travels through a vacuum at its maximum speed of about 3.0 × 108 m/s, and in a straight path. Light travels at slower speeds through different materials, such as glass or air. When traveling from one medium to another, some light will be reflected at the surface of the new medium.
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How the Speed of Light was First Measured The speed of light in a vacuum stands at “exactly 299,792,458 metres per second“. The reason today we can put an exact figure on it is because the speed of light in a vacuum is a universal constant that has been measured with lasers; and when an experiment involves lasers, it’s hard to argue with the results.
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- Whirlpool galaxy (M51): 37,000,000 miles. Sombrero galaxy (M104): 65,000,000 miles. Astronomers measure the distance to the Andromeda galaxy using light-years. One light-year equals about 6 trillion miles. This galaxy is over 2 million light-years from Earth.tars other than our sun are so far distant that astronomers refer to their distances not in terms of kilometers or miles – but in light-years. Light is the fastest-moving stuff in the universe. It travels at an incredible 300,000 kilometers (186,000 miles) per second. That’s very fast.
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How Long Will It Take to Get to Mars Traveling at the Speed of Light? The furthest possible distance between both planets is 401 million kilometers. The speed of light is 299,792 kilometers per second. By comparison, NASA's New Horizons probe, which travelled 58,000 kilometers per hour, would take 942 hours to reach Mars if it left at the closest possible distance between both planets.
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- Then, once we divide the answer by 1.23 and. multiply by 100 (an exact number), we have a number with two sig figs, divided by a number with. three sig figs. Based on the multiplication/division rule, our answer can only have two sig figs.
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- Stars other than our sun are so far distant that astronomers refer to their distances not in terms of kilometers or miles – but in light-years. Light is the fastest-moving stuff in the universe. It travels at an incredible 300,000 kilometers (186,000 miles) per second. So, in a year, light travels far.
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THE THOUSAND-YARD MODEL or, The Earth as a Peppercorn If light travels exactly 1 meter in 1/299,772,458 lf a second, how many km does it travel in 2.00 years? A light year is the distance light travels in 1 year.f light travels exactly 1 meter in 1/299,772,458 lf a second, how many km does it travel in 2.00 years? A light year is the distance light travels in 1 year.
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- Light is the fastest-moving stuff in the universe. It travels at an incredible 300,000 kilometers (186,000 miles) per second. So, in a year, light travels far.
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How does the speed of light compare to the speed of sound? The speed of light is roughly 882 thousand times the speed of sound. -- Sound takes about 4.7 seconds to cover 1 mile. -- Light takes about 0.0000054 second to cover 1 mile. -- In the time it takes sound to travel one mile, light travels 881,741 miles. During a thunderstorm, you see the lightning before you hear the thunder, even though they're caused by the same event. Another clue to an easy answer: Nothing is faster than the speed of light.
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- 120000. has six sig figs 120000 has two sig figs – unless you’re given additional information in the problem 4. Zeros to left of the first nonzero digit are insignificant (they don’t count); they are only placeholders! 0.000456 has three sig figs 0.052 has two sig figs 0.000000000000000000000000000000000052 also has two sig figs!
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Broken Speed Of Light I agree with chris that if you move the space as well as the object you could accelerate an object to the speed of light relative to the observer watching the two objects. its as if you are in a moving car a 60 mph. the car and you are going 60 but to the car (if it had feelings) you wouldn’t be moving at all.
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- • It would take 100,000 years to cross the Milky Way at the speed of light. Just to gain another reference point, our nearest spiral galaxy, the Andromeda galaxy (M31) is 2.4 to 2.9 million light years from us, and it is about 250,000 ly in diameter. Very big! But, consider the size of the known Universe—156 billion ly wide!
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- The speed of light. Light travels at approximately 186,282 miles per second (299,792 km per second). Therefore, a light shining from the surface of Mars would take the following amount of time to reach Earth (or vice versa): 1  Closest approach: 182 seconds, or just over 3 minutes.2  Farthest approach: 1,342 seconds, or just over 22 minutes.ight travels at approximately 186,282 miles per second (299,792 km per second). Therefore, a light shining from the surface of Mars would take the following amount of time to reach Earth (or vice versa):
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The one way speed of light is instantaneous That is because the universe is expanding faster than the speed of light. Space itself is pulling apart at the seams, expanding at a rate of 74.3 plus or minus 2.1 kilometers (46.2 plus or minus 1.3 miles) per second per megaparsec (a megaparsec is roughly 3 million light-years).
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Speed of light First of all, a light-year is the distance light travels in one year. The star Alpha Centauri is about 4 light-years away, so light from Alpha Centauri takes 4 years to get to the Earth. Now, if we wanted to travel to Alpha Centauri, we would have to know how fast our spaceship is travelling. The fastest rockets move at about 20,000 mph.
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It takes light about 8 min. to travel 1 AU Calculate how long it takes light from each planet to reach the sun It takes light about 8 minutes to travel one AU. Calculate how long it takes light to reach each planet from the sun. Planet and distance from sun in AU's Mercury 0.39 Venus 0.72 Earth 1.0 Mars 1.5 Asteroid belt 2.5- 2.8 Jupiter 5.2 Saturn 9.2 Uranus 19.2 Neptune 30.0 Pluto 39.4.ating Newest Oldest. Best Answer: Sample calculation for Mercury: Use a ratio. Say: Light takes 8 minutes to travel 1 AU, so it takes x minutes to travel 0.39 AU. To put that in equation form: 8/1 = x/0.39 And solve for x: 0.39 * 8 = x 3.12 = x Light takes 3.12 minutes to travel to Mercury.
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4 cosmic phenomena that travel faster than the speed of light 4 cosmic phenomena that travel faster than the speed of light. When Albert Einstein first predicted that light travels the same speed everywhere in our universe, he essentially stamped a speed limit on it: 670,616,629 miles per hour — fast enough to circle the entire Earth eight times every second. But that's not the entire story. In fact, it's just the beginning.
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- The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.
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- August 23, 2016. The Model S P100D with Ludicrous mode is the third fastest accelerating production car ever produced, with a 0-60 mph time of 2.5* seconds. However, both the LaFerrari and the Porsche 918 Spyder were limited run, million dollar vehicles and cannot be bought new.
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Speed of light In a medium, light usually does not propagate at a speed equal to c; further, different types of light wave will travel at different speeds. The speed at which the individual crests and troughs of a plane wave (a wave filling the whole space, with only one frequency) propagate is called the phase velocity v p.n 1983, the metre was redefined in the International System of Units (SI) as the distance travelled by light in vacuum in 1/ 7008299792458000000♠299792458 of a second. As a result, the numerical value of c in metres per second is now fixed exactly by the definition of the metre.
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How Fast Does Light Travel? | The Speed of Light Einstein's theory of special relativity sets of the speed of light, 186,000 miles per second (300 million meters per second). But some scientists are exploring the possibility that this cosmic speed limit changes. The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.