how long does it take for light to travel around the earth
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How long does it take light to travel around Earth seven and a half times? About a second. The circumference of Earth is about 40,075 km. Light travels at about 299,792 km/s. So to find how long it takes to go around 7.5 times, we multiply the circumference of the Earth by 7.5.Then take that answer and divide it by the speed of light, which equals 1.0026 seconds.ight travels at about 299,792 km/s. So to find how long it takes to go around 7.5 times, we multiply the circumference of the Earth by 7.5. Then take that answer and divide it by the speed of light, which equals 1.0026 seconds.
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How Fast Does Light Travel? | The Speed of Light View full size image. 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.iew full size image. 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.
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How fast does light travel on earth? Answer Wiki. Light, or individual photons, travel at exactly the same speed on earth as they will at any part of the universe. The complications come in when we experimentally measure it within our atmosphere. Light travels in air at approximately 299,700 km/s (about 90 km/s slower than our friendly c that we know and love which is equal to approx.
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Why does it take 20,000 years for light to reach the surface of the Sun from its core, but just 8 minutes to reach the surface of the Earth? It takes 8 Earth minutes for light to reach the Earth from the Sun, but considering the theory of relativity how many photon minutes does it t... The photons collide billions of times per second with the Sun’s atoms on their way from the core, where they were generated, to the Sun's surface.
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How long does it take for a pulse of laser light to reach the Moon and to bounce back to the Earth? The time for light to travel from the Moon to Earth is about one and a quarter seconds. Light travels through space at roughly 300,000 km/second, so the average distance betwe … en the Earth and the Moon (about 384,399 kilometers) is traversed in 1.28 seconds.et's do the math: The average distance between the moon's surface and the earth's surface is 380,500 kilometers(km). Light is an electromagnetic wave an … d travels at a speed roughly 3 x 10^8 meters/second(m/s) in a vacuum.
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- 16,353 Contributions. Light takes about 8 minutes to travel from Earth to the sun. The sun is about 93 million miles away, so it would take about 177 years to get to the sun in a car traveling at 6 … 0 miles per hour, and about 21.5 years to get to the sun in an airplane traveling at 500 miles per hour.ound can not travel in the vacuum of space, but if it could, and assuming the same speed as in normal air, then it would take about 19 years for sound to travel 93 million mi … les at 768 miles per hour.
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How long does it take to travel one light year? Report Abuse. Travelling at the speed of the space shuttle in orbit, which is about as fast as anyone has ever travelled, it would take around 50,000 years to travel one light year. Cheers! Quadrillian · 5 years ago.
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-   That would depend on the speed at which one is travelling.   * The average distance involved is 149,600,000 kilometres-or - 92,960,000 miles. Light from the Sun - … travelling through the vacuum of space at a speed of almost 300,000 kilometres per second-takes 8.6 minutes to reach us.
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How long does it take light from other stars to reach Earth? Report Abuse. That depends. Distance from the earth to stars is measured in light years. It takes a ray of light (light travels at 186,200 miles per second) one year to reach the earth. So a star that is 10 million light years away...it takes 10 million years to reach earth.
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How long will it take humans to travel to Mars? 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):
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- The shuttle orbits the Earth at about 5 miles per second (18,000 mph). Light travels at 186,000 miles per second, which is about 37,200 times faster than the shuttle. So the shuttle would need about 37,200 years to go one light-year.
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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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- Actually I think the answer would be C. 8 earth years. The reason for this is because light years is literally the amount of time it takes for light to travel in a earth year. There is no mathematical expression needed for this, it says it in the problem. If it takes light to travel 8 years to a star its 8 earth years.
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How Long Does it Take Sunlight to Reach the Earth? Sunlight travels at the speed of light. Photons emitted from the surface of the Sun need to travel across the vacuum of space to reach our eyes. The short answer is that it takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth. If the Sun suddenly disappeared from the Universe (not that this could actually happen, don’t panic), it would take a little more than 8 minutes before you realized it was time to put on a sweater.
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How Far Does Light Travel in a Year? As a result, looking at objects billions of light-years from Earth is to see billions of light-years back in time. Yes, light travels at an extremely fast speed. But given the sheer size and scale of the Universe, it can still take billions of years from certain points in the Universe to reach us here on Earth. Hence why knowing how long it takes for light to travel a single year is so useful to scientists.
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General Astronomy/Print version That’s very fast. If you could travel at the speed of light, you would be able to circle the Earth’s equator about 7.5 times in just one second! A light-second is the distance light travels in one second, or 7.5 times the distance around Earth’s equator. A light-year is the distance light travels in one year. How far is that? Multiply the number of seconds in one year by the number of miles or kilometers that light travels in one second, and there you have it: one light-year.
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How many kilometers per second does light travel? How many miles per hour does light travel? Light travels at a whopping 186,000 miles per second or about  669,600,000 miles per hour, to answer your question.    This is very fast, but it still takes the light …from the sun eight  minutes to reach us, and there is a big difference.
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How long does it take to travel a light year? So.. 1 kilometer = 0.621371192 miles so since 186,282.397 mi. = 299.337 km per second, multiply 299.337 by 360 to get how many kilometers per hour light travels which is 107761.32 km per hour. Then, since there are 8,765.813 hours in a year, light travels a total of 944615579.75316 km per year. 50,000km/h X 8765.813 = 438290650 km per year So you're looking at roughly two years.
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Monthly Budget Status Reports Monthly Status Reports. Monthly Budget Status Reports. Monthly Budget Status Reports are distributed by e-mail on the second working day of the month, except for June and December, when the month is held open longer for calendar end and year-end duties.
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- Best Answer: Light travels at 186,000 miles per second. Therefore 60x60x24x365=seconds in a year 31,536,000 x 186,000 = 5,865,696,000,000 miles in a lightyear. Source(s): stevensontj · 9 years ago.
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How Long Does it Take Sunlight to Reach the Earth? at its closest point sunlight only takes 490 seconds to reach earth and then at the most distant point it takes 507 seconds for sunlight to make the journey but the story of light gets even more interesting when you think about the journey light needs to make inside the sun
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- it takes about 500 seconds for sunlight to reach the earth this means that when the sun rises the light that reaches the earth is already 8 minutes and 20 seconds old
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Light year Background information. The light year is the distance that light travels in one Earth year. It is approximately equal to 9.46e12×1012 kilometers, or 5.88e12×1012 miles.The exact length of a light year depends on the exact length used for one Earth year. The IAU uses a Julian year of 365.25 days, while other sources may use a Gregorian year of 365.2425 days, or another year altogether.
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- In empty space, lighttravels at a speed of about 300,000 km/s.Light travels so fast thatlight emitted from the Sun travels 150 million km to Earth inonly about eight and a half minutes.However, when light travels in matter, it interacts with theatoms and molecules in the material and slows down.
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How much time will take to reach the light rays from sun to earth Well, the speed of light is 299,792,458 m/s (meters per second, not miles). Now here's where things get a little complicated. Earth's orbit around the sun is not a circle, it's an oval.
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how long would it take to travel a light-year? I did a bit of a calculation and came up with this, I hope I got it right. Light travels 9,454,254,955,488 Km per year. Spacecraft travels at around 50,000 Km per hour 438,000,000 Km per year. Just over 21,585 years to cover the distance. Here's some refs. for a bit of thought.
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- The short answer is that it takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth.……..Here's the math. We orbit the Sun at a distance of about 150 million km. Light moves at 300,000 kilometers/second.acuum-mechanics. The short answer is that it takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth.……..Here's the math. We orbit the Sun at a distance of about 150 million km. Light moves at 300,000 kilometers/second. Divide these and you get 500 seconds, or 8 minutes and 20 seconds.