INTRO.TO PHYSICAL SCIENCE NSU PKG >IC<
14th Edition
ISBN: 9781305765443
Author: Shipman
Publisher: CENGAGE C
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Chapter 15.5, Problem 2PQ
To determine
Why present day calendar is called the Georgian Calendar?
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Question B3
Consider the following FLRW spacetime:
t2
ds² = -dt² +
(dx²
+ dy²+ dz²),
t2
where t is a constant.
a)
State whether this universe is spatially open, closed or flat.
[2 marks]
b) Determine the Hubble factor H(t), and represent it in a (roughly drawn) plot as a function
of time t, starting at t = 0.
[3 marks]
c) Taking galaxy A to be located at (x, y, z) = (0,0,0), determine the proper distance to galaxy
B located at (x, y, z) = (L, 0, 0). Determine the recessional velocity of galaxy B with respect
to galaxy A.
d) The Friedmann equations are
2
k
8πG
а
4πG
+
a²
(p+3p).
3
a
3
[5 marks]
Use these equations to determine the energy density p(t) and the pressure p(t) for the
FLRW spacetime specified at the top of the page.
[5 marks]
e) Given the result of question B3.d, state whether the FLRW universe in question is (i)
radiation-dominated, (ii) matter-dominated, (iii) cosmological-constant-dominated, or (iv)
none of the previous. Justify your answer.
f)
[5 marks]
A conformally…
Chapter 15 Solutions
INTRO.TO PHYSICAL SCIENCE NSU PKG >IC<
Ch. 15.1 - What is a Cartesian coordinate system?Ch. 15.1 - What do numbers on the x- and y-axes indicate on a...Ch. 15.2 - Prob. 1PQCh. 15.2 - Prob. 2PQCh. 15.2 - Determine the number of nautical miles between...Ch. 15.3 - Prob. 1PQCh. 15.3 - Prob. 2PQCh. 15.3 - Determine the standard time and date at 130W when...Ch. 15.4 - What is meant by the altitude of the Sun?Ch. 15.4 - Prob. 2PQ
Ch. 15.4 - What would be the latitude of the ship in Example...Ch. 15.4 - Make drawings illustrating the determination of...Ch. 15.5 - Prob. 1PQCh. 15.5 - Prob. 2PQCh. 15.6 - Prob. 1PQCh. 15.6 - Prob. 2PQCh. 15 - KEY TERMS 1. Cartesian coordinate system (15.1) 2....Ch. 15 - Prob. BMCh. 15 - Prob. CMCh. 15 - Prob. DMCh. 15 - Prob. EMCh. 15 - Prob. FMCh. 15 - Prob. GMCh. 15 - Prob. HMCh. 15 - Prob. IMCh. 15 - Prob. JMCh. 15 - Prob. KMCh. 15 - Prob. LMCh. 15 - Prob. MMCh. 15 - Prob. NMCh. 15 - Prob. OMCh. 15 - Prob. PMCh. 15 - Prob. QMCh. 15 - Prob. RMCh. 15 - Prob. SMCh. 15 - Prob. TMCh. 15 - Prob. UMCh. 15 - Prob. VMCh. 15 - Prob. WMCh. 15 - Prob. 1MCCh. 15 - Prob. 2MCCh. 15 - Prob. 3MCCh. 15 - Which of the following is true about longitude?...Ch. 15 - Which of the following is true of meridians?...Ch. 15 - Prob. 6MCCh. 15 - Prob. 7MCCh. 15 - Prob. 8MCCh. 15 - Prob. 9MCCh. 15 - Prob. 10MCCh. 15 - If the altitude of the Sun is measured to be 25,...Ch. 15 - What is the altitude of the Sun when it is just...Ch. 15 - Prob. 13MCCh. 15 - Prob. 14MCCh. 15 - Which of the following is true for an observer at...Ch. 15 - From September 22 to March 21, in what direction...Ch. 15 - Prob. 17MCCh. 15 - Which of the following is true for the Gregorian...Ch. 15 - Prob. 19MCCh. 15 - Prob. 20MCCh. 15 - A Cartesian coordinate system is also called a(n)...Ch. 15 - Prob. 2FIBCh. 15 - Prob. 3FIBCh. 15 - Prob. 4FIBCh. 15 - Prob. 5FIBCh. 15 - Prob. 6FIBCh. 15 - Prob. 7FIBCh. 15 - Prob. 8FIBCh. 15 - Prob. 9FIBCh. 15 - Prob. 10FIBCh. 15 - Prob. 11FIBCh. 15 - Prob. 12FIBCh. 15 - Prob. 13FIBCh. 15 - Prob. 14FIBCh. 15 - Prob. 15FIBCh. 15 - Prob. 16FIBCh. 15 - Prob. 17FIBCh. 15 - Prob. 18FIBCh. 15 - Prob. 19FIBCh. 15 - Prob. 20FIBCh. 15 - How is the origin defined in a Cartesian...Ch. 15 - What, on a sphere, is analogous to a...Ch. 15 - Prob. 3SACh. 15 - What are the minimum and maximum values for...Ch. 15 - Prob. 5SACh. 15 - Prob. 6SACh. 15 - Prob. 7SACh. 15 - Prob. 8SACh. 15 - Are meridians great circles? Explain.Ch. 15 - Prob. 10SACh. 15 - Prob. 11SACh. 15 - Prob. 12SACh. 15 - Prob. 13SACh. 15 - Prob. 14SACh. 15 - Distinguish between a solar day and a sidereal...Ch. 15 - Prob. 16SACh. 15 - Explain why the Sun moves 15/h.Ch. 15 - Prob. 18SACh. 15 - Prob. 19SACh. 15 - How were the latitude and longitude of a ship...Ch. 15 - Prob. 21SACh. 15 - Prob. 22SACh. 15 - Prob. 23SACh. 15 - Prob. 24SACh. 15 - Prob. 25SACh. 15 - Prob. 26SACh. 15 - Prob. 27SACh. 15 - Prob. 28SACh. 15 - Prob. 29SACh. 15 - Prob. 30SACh. 15 - Prob. 31SACh. 15 - Prob. 32SACh. 15 - Prob. 1VCCh. 15 - Prob. 1AYKCh. 15 - Prob. 2AYKCh. 15 - Prob. 3AYKCh. 15 - Barrow, Alaska (71N), gets 24 hours of daylight...Ch. 15 - Prob. 5AYKCh. 15 - Prob. 6AYKCh. 15 - Prob. 7AYKCh. 15 - Prob. 8AYKCh. 15 - What is the number of latitude degrees between...Ch. 15 - What is the number of latitude degrees between...Ch. 15 - What is the number of nautical miles between place...Ch. 15 - Prob. 4ECh. 15 - What are the latitude and longitude of the point...Ch. 15 - What are the latitude and longitude of the point...Ch. 15 - What are the standard time and date at (40N, 118W)...Ch. 15 - What are the standard time and date at (40N, 110W)...Ch. 15 - When it is 10 p.m. standard time on November 26 in...Ch. 15 - When it is 10 a.m. standard time on February 22 in...Ch. 15 - Prob. 11ECh. 15 - Prob. 12ECh. 15 - Prob. 13ECh. 15 - It is 6 a.m. on July 1 in London (51.5N, 0). What...Ch. 15 - What is the altitude of the Sun for someone in...Ch. 15 - What is the altitude of the Sun for someone in...Ch. 15 - What is the latitude of someone in the United...Ch. 15 - What is the latitude of someone in Europe who sees...Ch. 15 - Determine the month and day when the Sun is at...Ch. 15 - Determine the month and day when the Sun is at...Ch. 15 - At approximately what latitude is the noonday Sun...Ch. 15 - At approximately what latitude is the noonday Sun...Ch. 15 - A ships captain with a sextant measures the...Ch. 15 - Later in the voyage, on March 21, the captain in...Ch. 15 - Shooting the Sun with a sextant, the first mate on...Ch. 15 - On December 7, the first mate on a ship measures...Ch. 15 - The reading taken on a sailing ship shows that on...Ch. 15 - On June 21, the altitude of the noonday Sun is...
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