Physics: Principles with Applications
6th Edition
ISBN: 9780130606204
Author: Douglas C. Giancoli
Publisher: Prentice Hall
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Chapter 33, Problem 8Q
To determine
How the Cepheid variable star is used to measure the distance to galaxies?
Expert Solution & Answer
Answer to Problem 8Q
Solution:
Explanation of Solution
Step 1: Observe the brightness of the star to find out the time period
Step 2: Use the luminosity-time period graph to find the corresponding luminosity
Step 3: Use the luminosity and the average observed brightness to calculate the approximate distance using the formula:
Chapter 33 Solutions
Physics: Principles with Applications
Ch. 33 - Prob. 1QCh. 33 - Prob. 2QCh. 33 - Prob. 3QCh. 33 - Prob. 4QCh. 33 - Prob. 5QCh. 33 - Prob. 6QCh. 33 - Prob. 7QCh. 33 - Prob. 8QCh. 33 - Prob. 9QCh. 33 - Prob. 10Q
Ch. 33 - Prob. 11QCh. 33 - Prob. 12QCh. 33 - Prob. 13QCh. 33 - Prob. 14QCh. 33 - Prob. 15QCh. 33 - Prob. 16QCh. 33 - Prob. 17QCh. 33 - Prob. 18QCh. 33 - Prob. 19QCh. 33 - Prob. 20QCh. 33 - Prob. 1PCh. 33 - Prob. 2PCh. 33 - Prob. 3PCh. 33 - Prob. 4PCh. 33 - Prob. 5PCh. 33 - Prob. 6PCh. 33 - Prob. 7PCh. 33 - Prob. 8PCh. 33 - Prob. 9PCh. 33 - Prob. 10PCh. 33 - Prob. 11PCh. 33 - Prob. 12PCh. 33 - Prob. 13PCh. 33 - Prob. 14PCh. 33 - Prob. 15PCh. 33 - Prob. 16PCh. 33 - Prob. 17PCh. 33 - Prob. 18PCh. 33 - Prob. 19PCh. 33 - Prob. 20PCh. 33 - Prob. 21PCh. 33 - Prob. 22PCh. 33 - Prob. 23PCh. 33 - Prob. 24PCh. 33 - Prob. 25PCh. 33 - Prob. 26PCh. 33 - Prob. 27PCh. 33 - Prob. 28PCh. 33 - Prob. 29PCh. 33 - Prob. 30PCh. 33 - Prob. 31PCh. 33 - Prob. 32PCh. 33 - Prob. 33GPCh. 33 - Prob. 34GPCh. 33 - Prob. 35GPCh. 33 - Prob. 36GPCh. 33 - Prob. 37GPCh. 33 - Prob. 38GPCh. 33 - Prob. 39GPCh. 33 - Prob. 40GPCh. 33 - Prob. 41GPCh. 33 - Prob. 42GPCh. 33 - Prob. 43GPCh. 33 - Prob. 44GPCh. 33 - Prob. 45GPCh. 33 - Prob. 46GPCh. 33 - Prob. 47GPCh. 33 - Prob. 48GPCh. 33 - Prob. 49GP
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