Your Textbook EditionPricingAbout UsFeaturesReviewsFAQContact
Get startedLog in
Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
33
Astrophysics and Cosmology
Change chapter
33-1 to 33-3: Stars, Galaxies, Stellar Evolution, Distances
1
play arrow0:48
2
play arrow0:36
3
play arrow1:58
4
play arrow1:48
5
play arrow0:38
6
play arrow1:36
7
play arrow2:35
8
play arrow0:26
9
play arrow1:19
10
play arrow1:40
11
play arrow0:47
12
play arrow0:54
13
play arrow0:25
14
play arrow3:40
15
play arrow3:44
33-4: General Relativity, Gravity and Curved Space
16
play arrow0:30
17
play arrow0:22
18
play arrow0:52
19
play arrow2:49
20
play arrow0:51
21
play arrow1:50
33-5: Redshift, Hubble's Law
22
play arrow0:31
23
play arrow0:32
24
play arrow2:15
25
play arrow1:47
26
play arrow2:41
27
play arrow2:02
28
play arrow0:44
29
play arrow2:01
30
play arrow2:38
31
play arrow2:31
32
play arrow3:30
33-6 to 33-8: The Big Bang, CMB, Universe Expansion
33
play arrow0:36
34
play arrow0:39
35
play arrow0:30
36
play arrow1:47
37
play arrow2:09
33-9: Dark Matter, Dark Energy
38
play arrow2:06
Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 21
Q

What is the apparent deflection of a light beam in an elevator (Fig. 33–13) which is 2.4 m wide if the elevator is accelerating downward at 9.8 m/s29.8 \textrm{ m/s}^2?

(a) Light beam goes straight across an elevator which is not accelerating.
Figure 33-13 (a) Light beam goes straight across an elevator which is not accelerating.
(b) The light beam bends (exaggerated) according to an observer in an accelerating elevator whose speed increases in the upward direction.
Figure 33-13 (b) The light beam bends (exaggerated) according to an observer in an accelerating elevator whose speed increases in the upward direction.
A
3.1×10−16 m3.1 \times 10^{-16} \textrm{ m}
Giancoli 7th Edition, Chapter 33, Problem 21 solution video poster
Padlock

In order to watch this solution you need to have a subscription.

Get Started
View sample solution

|

Log in
Privacy policyTerms of serviceHelp center

Find us on:

Facebook iconTrustpilot icon
Giancoli Answers, including solutions and videos, is copyright © 2009-2024 Shaun Dychko, Vancouver, BC, Canada. Giancoli Answers is not affiliated with the textbook publisher. Book covers, titles, and author names appear for reference purposes only and are the property of their respective owners. Giancoli Answers is your best source for the 7th and 6th edition Giancoli physics solutions.