Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Chapter 1, Problem 20QAP
To determine
The nature of slope of line.
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Using the data in the table below and the appropriate conversion factors, find the mean distance to the moon, in feet.
Approximate Values of Some Measured Lengths
Length (m)
Distance from Earth to most remote known quasar
1 ✕ 1026
Distance from Earth to most remote known galaxies
4 ✕ 1025
Distance from Earth to nearest large galaxy (M31 in Andromeda)
2 ✕ 1022
Distance from Earth to nearest star (Proxima Centauri)
4 ✕ 1016
One lightyear
9 ✕ 1015
Mean orbit radius of the Earth about the Sun
2 ✕ 1011
Mean distance from the Earth to the Moon
4 ✕ 108
Mean radius of the Earth
6 ✕ 106
Typical altitude of a satellite orbiting Earth
2 ✕ 105
Length of a football field
9 ✕ 101
Length of a housefly
5 ✕ 10-3
Size of the smallest dust particles
1 ✕ 10-4
Size of the cells of most living organisms
1 ✕ 10-5
Diameter of a hydrogen atom
1 ✕ 10-10
Diameter of an atomic nucleus
1 ✕ 10-14
Diameter of a proton
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Calculate the angle a person needs to lean from the vertical when
1. walking a 14 m (radius) circular track at 22 mins per mile, and
Enter to 2 significant figures
Angle with respect to the vertical =
= 0.85
! No, that's not the correct answer.
O
2. running at 4 min per mile.
Enter to 2 significant figures
Angle with respect to the vertical = 6.8
Use 1 mile = 1609.4 m
Sense-making: Do your results for the leaning angle during walking agree with your observations
about people walking on circular tracks?
O
What would the graphs look like for part 2, 3, and 4. I was able to do it for Part 1 (second pic) but now I’m not sure if it’s the same for all the others or if they require more components based on the degree of the line.
Chapter 1 Solutions
Understanding Our Universe
Ch. 1.1 - Prob. 1.1CYUCh. 1.2 - Prob. 1.2CYUCh. 1.3 - Prob. 1.3CYUCh. 1 - Prob. 1QAPCh. 1 - Prob. 2QAPCh. 1 - Prob. 3QAPCh. 1 - Prob. 4QAPCh. 1 - Prob. 5QAPCh. 1 - Prob. 6QAPCh. 1 - Prob. 7QAP
Ch. 1 - Prob. 8QAPCh. 1 - Prob. 9QAPCh. 1 - Prob. 10QAPCh. 1 - Prob. 11QAPCh. 1 - Prob. 12QAPCh. 1 - Prob. 13QAPCh. 1 - Prob. 14QAPCh. 1 - Prob. 15QAPCh. 1 - Prob. 16QAPCh. 1 - Prob. 17QAPCh. 1 - Prob. 18QAPCh. 1 - Prob. 19QAPCh. 1 - Prob. 20QAPCh. 1 - Prob. 21QAPCh. 1 - Prob. 22QAPCh. 1 - Prob. 23QAPCh. 1 - Prob. 24QAPCh. 1 - Prob. 25QAPCh. 1 - Prob. 26QAPCh. 1 - Prob. 27QAPCh. 1 - Prob. 28QAPCh. 1 - Prob. 29QAPCh. 1 - Prob. 30QAPCh. 1 - Prob. 31QAPCh. 1 - Prob. 32QAPCh. 1 - Prob. 34QAPCh. 1 - Prob. 35QAPCh. 1 - Prob. 36QAPCh. 1 - Prob. 37QAPCh. 1 - Prob. 38QAPCh. 1 - Prob. 39QAPCh. 1 - Prob. 40QAPCh. 1 - Prob. 41QAPCh. 1 - Prob. 42QAPCh. 1 - Prob. 43QAPCh. 1 - Prob. 44QAPCh. 1 - Prob. 45QAP
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