0
Light has a speed of almost 300,000 km/sec. The circumference of Earth is 40,000 km. Therefore, in theory, light can go around Earth 7.5 times per second.
However, since light travels in a straight line, it will not go around the earth unless helped by being reflected from other bodies.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoAppr. answer = 7.4 times/sec
equation used: time = distance/rate..... x seconds = (circumference of earth)/(speed of light).....
x = (4.00727E7 meters)/(3.00E8 meters per second)
x = .1335 seconds
.1335 seconds is how long it takes light to orbit earth once.
1/.1335 = 7.4
light travels around the earth ~7.4 times in one second.
Hope this helps
(Of course, light would never travel like this, except around a body with enough mass to curve space-time enough for light to be trapped in that orbit, though it would be a very unstable orbit and would eventually escape or fall spiralling).
Wiki User
∙ 15y agoWithout a time limit I can go around the earth as many times as I want. Light is able to travel around the earth in 0.002224 sec. Light can travel roughly 8.9810749 times. Id say 9 times but im a free thinker. Light Speed: 299792458 m/s Earth Distance: 24,859.82 miles
Wiki User
∙ 15y agoSince you travel 5.86 x 10^12 miles in one light year, and the circumfrance of the earth is approximately 24902.4 miles You would be able to travel around the earth 235258223.6 times or Over 235 million times.
Wiki User
∙ 15y agoThe equator is 40,075,020 meters long (40,075.02 km). Light in a vacuum travels 299,792,458 meters per second. Realize that unaided light would not travel along the equator at ground level like this; this is just for comparison. Given the figures above, something moving at light speed would make it around the equator about 7.48 times in one second. Quite a clip, I would say.
Wiki User
∙ 12y agoSpeed of light : 3 * 108 metres per second
Earth circumference : 4.003 * 107 metres
>
Distance travelled by light in 1.1 seconds = 3.3 * 108 metres
Revolutions of the earth = (3.3 * 108) / (4.003 * 107) = 8.24 times
Wiki User
∙ 8y ago
For the radius of the Earth, use 3,960 miles.
Then the circumference is (3,960) x (2pi) miles.
Using the speed of light in vacuum, the time to travel that distance is
(2 x pi x 3,960 miles) / (186,292.397 miles per second) = 0.134 second
If this could actually happen, and you let the light beam keep going, then
at that rate, it would circle the Earth almost 7.5 times in a whole second.
Wiki User
∙ 7y agoApprox 1/8 seconds.
Wiki User
∙ 13y ago25 times
Add your answer:
Earn +20 pts
How fast does is the speed of light travel around the earth?
Light cannot travel around the Earth, since light travels at a straight line and the Earth is round. The speed of light is 300,000 kilometers per second.
How fast is the speed of light?
In vacuum, the speed of light is -- 299,792,458 meters per second -- 186,282.397 miles per second. If you were to travel at the speed of light, you could go around the Earth's equator approximately 7.6 times in one second. (Flying in a typical passenger jet, at a ground speed of 500 mph, it would take 4 hours to cross the continental US.)
How far does light travel in one hour?
By definition, light travels 299,792,458 meters per second. This gives 299,792.458 kilometers per second. Multiplying by 60 gives 17,987,547.48 kilometers per minute, and multiplying again by 60 gives the distance traveled per hour. It is 1,079,252,848.8 km/h. See the related link for more information.
If the earth is 25000 miles around and lightning travels at 670616629.384 miles per second how many times would it circle the earth in one second?
LIGHT travels at about 670,616,629.384 miles per HOUR, not per second!Converting m.p.h. to miles per second, then the approximate speed of light would be about 186,282 miles per second.IF lightning travels at the speed of light (which it doesn't!) then 186,282 miles in one second divided by the approximate circumference of the earth, i.e. 25,000 miles, equals 7.45, or say seven and a half times round the earth, or once every 1/7.45 = 0.13 seconds.However! Lightning does not travel as fast as light! It has been approximated that lightning, on average, travels at about half the speed of light. So, one continuous flash of lightning, in a tight circle close to the earth, could travel round the earth 3.725 times, approximately.-----------------------------------------Note: I agree the " tethering " of the cloud and the earth via the electrons and protons from each, does not travel at the speed of light.However; this connection between the two creates an "electrical bolt" which in turn creates a flash of light, which, as the name suggests, does travel at 300,000 kms/sec i.e. the speed of light.-------------------------------------------For more information, see 'Related questions' and 'Related links' below.
How long would it take approximately for light to travel from here to New York?
Light travels at approximately 186,000 miles per second, or approximately 3,000,000 (3-million) meters per second, or almost 1,000,000,000 (1-billion) feet per second. That's about 1 nano-second (1 billionth of a second) per foot. Light almost always travels in a straight line, but light is affected by gravity, and the path of the light can be "bent" (curved) as the light passes near large planets, or stars, or "black-holes". The distance around the earth at the equator is about 25,000 miles, so in 1 second, light will travel an equivalent of distance of about 7 and one-half times around the earth. Our Moon is about 250,000 miles away. Light from the Moon takes about 1 and one-third seconds to reach earth. Earth's orbit around the sun is not perfectly circular so the distance between the Earth and the Sun varies slightly over the course of the year. The average distance between the Earth and the Sun is about 93,000,000 (93-million) miles, so it takes about 500 seconds (8 and one-third minutes) for the light from the Sun to reach Earth. In your question, you asked how long it takes light to travel to New York, but you didn't specify the starting point. So, to calculate the time for light to travel from where you are, to New York... Find the distance (in miles) from where you are, to New York, multiply that distance by 5,280 (that is the number of feet per mile), and that will give you how many nano-seconds it takes light to travel that distance.
How many time does light travel around the earth in one second?
light can travel around earth about seven times
How many times can light travel around the world in one second?
If light were to go in a circle around the earth it would go around the earth about 7 3/4 times in a second.
7 times light tavels around the earth?
Light doesn't actually go around the Earth; light travels in generally straight lines. But if light DID go around the world, it could go around the world seven times in just less than one second.
What is da speed of light?
About 300,000,000 meters per second - enough to go around the Earth 7.5 times in a single second.
How fast does is the speed of light travel around the earth?
Light cannot travel around the Earth, since light travels at a straight line and the Earth is round. The speed of light is 300,000 kilometers per second.
How fast can light travel around the world?
Light travels at 300,000 km/sec. (in a vacuum). That is enough to go 7 1/2 times around the Earth in a second (but note that light has a natural tendency to go in a straight line).
How many times does a microwave go around the earth in one second?
Of course, microwaves travel in straight lines, not around the Earth, but just like any other electromagnetic wave, like light or X-rays, the speed of microwaves is about 300,000 kilometers per second. That distance corresponds to roughly 71/2 times the Earth's circumference.
What is the speed light travels?
The speed of light in a vacuum is 186,282.397 miles per second or 670,616,629.2 miles per hour.
How many time a beam of light can travel around the world in one second?
Light could travel seven and a half times around the world in one second.
How long does it take for light to travel to the earth?
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.
In one minute how many times can light travel around the earth?
7
How fast is the speed of light?
In vacuum, the speed of light is -- 299,792,458 meters per second -- 186,282.397 miles per second. If you were to travel at the speed of light, you could go around the Earth's equator approximately 7.6 times in one second. (Flying in a typical passenger jet, at a ground speed of 500 mph, it would take 4 hours to cross the continental US.)
