
Concept explainers
(a)
To write: The number of parsec in
(a)

Answer to Problem 69P
Explanation of Solution
Given:
The arc length is equal to
The angle of arc covered is
Formula used:
Write the expression for arc.
Rearrange the above expression in terms of
Here, r is the radius,
Calculation:
Substitute
The radius of circle is
Calculate the number of parsec in
Conclusion:
Thus,
(b)
To write: The number of meter in
(b)

Answer to Problem 69P
Explanation of Solution
Given:
Formula used:
Write the conversion for parsec into astronomical units as follows:
Calculation:
Calculate the number of meters in
Conclusion:
Thus,
(c)
To write: The number of meters in a light-year.
(c)

Answer to Problem 69P
A light-year is equal to
Explanation of Solution
Given:
Formula used:
Write the expression for distance covered.
Here, d is the distance covered, v is the speed of object and t is the time taken.
Calculation:
Substitute
Conclusion:
Thus, a light-year is equal to
(d)
To write: The number of AU in a light-year.
(d)

Answer to Problem 69P
A light-year is equal to
Explanation of Solution
Given:
Formula used:
Write the conversion for light years into meter as follows:
Calculation:
Calculate the number of AU in a light-year.
Conclusion:
Thus, a light-year is equal to
(e)
To write: The number of light-year in a parsec.
(e)

Answer to Problem 69P
Explanation of Solution
Given:
Formula used:
Write the conversion for parsec into meter as follows:
Calculation:
Calculate the number of light-year in a parsec.
Conclusion:
Thus,
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Chapter 1 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
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