Answered: The speed of light is now defined to be…

The speed of light is now defined to be 2.997 924 58 x108 m/s.Express the speed of light to (a) three significant figures,(b) five significant figures, and (c) seven significant figures.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter1: A Physics Toolkit

Section: Chapter Questions

Problem 39A

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The speed of light is now defined to be 2.997 924 58 x10⁸ m/s.
Express the speed of light to (a) three significant figures,
(b) five significant figures, and (c) seven significant figures.

Definition Definition Rate at which light travels, measured in a vacuum. The speed of light is a universal physical constant used in many areas of physics, most commonly denoted by the letter c . The value of the speed of light c = 299,792,458 m/s, but for most of the calculations, the value of the speed of light is approximated as c = 3 x 10 8 m/s.

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