21st Century Astronomy
21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 1, Problem 16QP
To determine

The cosmic address of a person in planet Tau Ceti e.

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please pay attention , i sent this question before but the answer was wrong , so make sure this time is correct
A light-year (ly) is the distance light travels in one year (at speed of 2.998 ×× 108 m/sm/s ). An astronomical unit (AU) is the average distance from the Sun to Earth, 1.50 ×× 108 km. 1 year = 3.156 ×× 107 s.   How many meters are there in 1.70 ly? Express your answer using three significant figures. Express in scientific notation!             1.70 ly = _________________m How many AU are there in 1.70 ly light-year? Express your answer using three significant figures. Express in scientific notation! 1.70 ly = _________________AU
Please explain the answer to this one whichever it may be.
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