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$\bullet$ How many nanoseconds does it take light to travel 1.00 $\mathrm{ft}$ in vacuum? (This result is a useful quantity to remember.)

1.02 ns

Physics 101 Mechanics

Chapter 1

Models, Measurements, and Vectors

Physics Basics

Rutgers, The State University of New Jersey

University of Washington

University of Sheffield

University of Winnipeg

Lectures

04:16

In mathematics, a proof is a sequence of statements given to explain how a conclusion is derived from premises known or assumed to be true. The proof attempts to demonstrate that the conclusion is a logical consequence of the premises, and is one of the most important goals of mathematics.

09:56

In mathematics, algebra is one of the broad parts of mathematics, together with number theory, geometry and analysis. In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics.

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How many nanoseconds does …

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How long does it take ligh…

The speed of light in a va…

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What is light? How fast do…

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How far (in feet) does lig…

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Roughly how long does it t…

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How far does light travel …

Okay. Chapter one Problem seven. It asks, How many nanoseconds does it takes? Light to travel one seat in a vacuum. Okay, So the speed of light in the vacuum was three times 10 to the eight meters per second. So if we want to find how long this takes to travel, we can't take the distance and divide of Felicity the speed of light to get how long it will take. So now we need to find distance is one feet. But our speed of light is in meters per second. So it was converted This two meters. So one feet one foot is 0.30 for eight meters. Perfect. So now the time this light takes the travel has been the 0.30 for a meters to find it by your new terms to you meters per second. You see, this is over seconds on bottom. So that resulting answer will be in you'd seconds which is what we want to start. So you see that this is one Zuber two times 10 to the negative nine seconds. Then we want to convert this time in the seconds and nano, Something's is times 10 to the negative nine seconds. So it's already there. So this is just for poison broke too. Oops. Not milliseconds. Nanoseconds perfect.

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