UNIVERSE (LOOSELEAF):STARS+GALAXIES
6th Edition
ISBN: 9781319115043
Author: Freedman
Publisher: MAC HIGHER
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Question
Chapter 1, Problem 29Q
To determine
(a)
To convert:
The distance from the earth to sun in light years.
To determine
(b)
The distance from the Earth to Sun in parsecs.
To determine
(c)
To discuss:
Whether light year or parsecs are useful units to express the distance between Earth and Sun.
Expert Solution & Answer
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Carry out the following conversions:
(a) 1.25 light-years to miles (a light-year is an astronomical measure of the distance
traveled by light in a year, or 365 days; the speed of light is 3.00 × 10° m/s)
x 10
mi
Enter your answer in scientific notation.
(b) 27.3 yd to centimeters
x 10
cm
Enter your answer in scientific notation.
(c) 2.7 × 1010 cm/s to ft/s
X 10
ft/s
Enter your answer in scientific notation.
Using a single dimensional equation, estimate the number of steps it would take a person with a step length of 2.65 ft to walk from the Earth to Alpha Centauri a distance of 4.37 light-years. The speed of light is 1.86282 x 105 miles/s. Number of Steps = Enter your answer in accordance to the question statement x 1017
(the complete question is in the picture)
If the Newtonian constant has units G = [N · m2/kg2], the speed of light has units c = [m/s], the mass has units M = [kg] and the SI unit newtons is equivalentto N = [kg · m/s2], what are the units of the relation GM/c3?A. [kg · s]B. [kg · m2/s]C. [m2/s]D. [s]
Chapter 1 Solutions
UNIVERSE (LOOSELEAF):STARS+GALAXIES
Ch. 1 - Prob. 1QCh. 1 - Prob. 2QCh. 1 - Prob. 3QCh. 1 - Prob. 4QCh. 1 - Prob. 5QCh. 1 - Prob. 6QCh. 1 - Prob. 7QCh. 1 - Prob. 8QCh. 1 - Prob. 9QCh. 1 - Prob. 10Q
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