21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 3, Problem 38QP
To determine
Find the speed of the planet at the later time and when will it be closer to the Sun.
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The speed of light is about 3 x 108 meters per second. The Millennium Falcon is traveling from Earth to Mars
at the speed of light. The distance between the Earth and Mars fluctuates between 5.46 x 10¹0 meters and
4,01 x 10¹¹ meters.
If the day the Millennium Falcon makes the "Mars Run," the distance is 2.25 x 10¹¹ meters, how long will it
take them?
Note: distance = rate time, and time = distance/rate
Express your answer in scientific notation. Use for the multiplication.
seconds
Convert your answer to minutes. Include at least 3 decimal places in your answer, which can be expressed in
standard notation.
minutes
Suppose the Millennium Falcon flies for 5 hours at the speed of light. How far will they travel? Express your
answer in scientific notation.
meters
A planet with mass 9.69x1023 kg orbits a star with mass 9.21x1030 kg. The orbit is circular, and the distance from the planet to the sun is 225x106 km. What is the
length of a year on this planet? Give your answer in earth years (1 earth year = 31,557,600 seconds).
You start out by driving 72 miles south in 3 hours and 20 minutes, and then you stop and park for a while. Finally you drive another 54 miles south in 4 hours and 20 minutes. The average velocity for your entire trip was 13.15 miles per hour to the south. How much time did you spend parked?
3 hours 49 minutes
0 hours 57 minutes
9 hours 34 minutes
1 hours 54 minutes
Chapter 3 Solutions
21st Century Astronomy
Ch. 3.1 - Prob. 3.1ACYUCh. 3.1 - Prob. 3.1BCYUCh. 3.2 - Prob. 3.2CYUCh. 3.3 - Prob. 3.3CYUCh. 3.4 - Prob. 3.4CYUCh. 3 - Prob. 1QPCh. 3 - Prob. 2QPCh. 3 - Prob. 3QPCh. 3 - Prob. 4QPCh. 3 - Prob. 5QP
Ch. 3 - Prob. 6QPCh. 3 - Prob. 7QPCh. 3 - Prob. 8QPCh. 3 - Prob. 9QPCh. 3 - Prob. 10QPCh. 3 - Prob. 11QPCh. 3 - Prob. 12QPCh. 3 - Prob. 13QPCh. 3 - Prob. 14QPCh. 3 - Prob. 15QPCh. 3 - Prob. 16QPCh. 3 - Prob. 17QPCh. 3 - Prob. 18QPCh. 3 - Prob. 19QPCh. 3 - Prob. 20QPCh. 3 - Prob. 21QPCh. 3 - Prob. 22QPCh. 3 - Prob. 23QPCh. 3 - Prob. 24QPCh. 3 - Prob. 25QPCh. 3 - Prob. 26QPCh. 3 - Prob. 27QPCh. 3 - Prob. 28QPCh. 3 - Prob. 29QPCh. 3 - Prob. 30QPCh. 3 - Prob. 31QPCh. 3 - Prob. 32QPCh. 3 - Prob. 33QPCh. 3 - Prob. 34QPCh. 3 - Prob. 35QPCh. 3 - Prob. 36QPCh. 3 - Prob. 37QPCh. 3 - Prob. 38QPCh. 3 - Prob. 39QPCh. 3 - Prob. 40QPCh. 3 - Prob. 41QPCh. 3 - Prob. 42QPCh. 3 - Prob. 43QPCh. 3 - Prob. 44QPCh. 3 - Prob. 45QP
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