Distance = velocity * time = 299792458 m / s * 0.000000001 sec
= 0.299792458 metres
1609.344
5 billion
It takes 1.3 to 1.4 nanoseconds for light to travel 1 foot.
None. It's a trick question. Light travels in firsts.
How many hours does it take to get to 4.5 billion km
1 nanosecond = 10-9 sec = 0.000000001 sec = 1 billionth of a sec. (Roughly the time it takes light/radio to travel one foot.)
About 0.3 meters in a vacuum. Divide that by 1.0003 to get the distance in meters per nanosecond through air. Divide by 1.5 for glass.
11.8 inches
1609.344
3.14159265358 moments make up 1 nanosecond
0.675km
1,000 of them.
3 meters is 9.84 feet.
0.000001 ms
85.285 square metres.
I've heard "one nano for one foot" but never checked it out. Let's do that now: 1 mile = 5,280 feet Speed of light = 186,282 miles per second = (186,282 x 5,280) = 983,568,960 feet per second. One nanosecond = 1 x 10-9 second. Speed of light = 0.9835+ feet per nanosecond You asked for the reciprocal = 1.0167 ns per foot (rounded) It looks like "one nano for one foot" is a pretty good approximation ! If given speed of light in terms of meters first: 299,732,458 m/s (100cm/1m)(1"/2.54cm)(1'/12")(10^-9) > we get (after canceling units) .983374206 1'/s >we need the answer in s not 1/s so we take the reciprocal: (.983374206 1'/s) -1 >we have now satisfied the problem with a solution of 1.01690688 ns/1' My answer is not rounded because of significant digits The units in the conversion above were exact so we should use the 9 significant digits we started with. (please correct if needed)
1,000,000,000,000,000,000