Quiz 1f_ Orbital Mechanics - Fall 2022 Section Group 1P8

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Purdue University, Fort Wayne *

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Mechanical Engineering

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Feb 20, 2024

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8/25/22, 8:43 PM Quiz 1f: Orbital Mechanics - Fall 2022 Section Group 1P8 https://canvas.unm.edu/courses/19370/quizzes/144769 1/5 Quiz 1f Due Aug 28 at 11:59pm Points 7 Questions 7 Time Limit 90 Minutes Instructions Attempt History Attempt Time Score LATEST Attempt 1 65 minutes 4.42 out of 7 Score for this quiz: 4.42 out of 7 Submitted Aug 25 at 8:38pm This attempt took 65 minutes. Quiz 1f 1 / 1 pts Question 1 Match Kepler's Laws to the appropriate statement First Law The orbit of each plane Correct! Correct! Second Law The line joining the pla Correct! Correct! Third Law The square of the perio Correct! Correct! 0.67 / 1 pts Question 2
8/25/22, 8:43 PM Quiz 1f: Orbital Mechanics - Fall 2022 Section Group 1P8 https://canvas.unm.edu/courses/19370/quizzes/144769 2/5 Which of Newton's Laws are primarily applicable in orbital mechanics? First Law Second Law Correct! Correct! Third Law orrect Answer orrect Answer Universal Gravitational Law Correct! Correct! 0.75 / 1 pts Question 3 The two-body problem equation of motion has which of the following properties? second order Correct! Correct! vector Correct! Correct! nonlinear Correct! Correct! ordinary orrect Answer orrect Answer first order scalar linear partial 1 / 1 pts Question 4
8/25/22, 8:43 PM Quiz 1f: Orbital Mechanics - Fall 2022 Section Group 1P8 https://canvas.unm.edu/courses/19370/quizzes/144769 3/5 An earth-orbiting satellite is at a point in an orbit with radius 7000 km and velocity 7 km/s. Using 3.986 X 10 km /s as the gravitational parameter and 6378 km as the Earth's radius, what is the satellite's specific mechanical energy? 5 3 2 -32.443 km /s Correct! Correct! 2 2 0 32.443 km /s 2 2 Infinity 0 / 1 pts Question 5 An earth-orbiting satellite is at a point in an orbit with altitude 400 km and velocity 7 km/s. Using 3.986 X 10 km /s as the gravitational parameter and 6378 km as the Earth's radius, what is the satellite's specific mechanical energy? 5 3 2 -34.308 km /s orrect Answer orrect Answer 2 2 -972 km /s ou Answered ou Answered 2 2 0 Infinity
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8/25/22, 8:43 PM Quiz 1f: Orbital Mechanics - Fall 2022 Section Group 1P8 https://canvas.unm.edu/courses/19370/quizzes/144769 4/5 Don't forget about the important distinction between "radius" and "altitude." 1 / 1 pts Question 6 An earth-orbiting satellite is at a point in an orbit with radius 8,258.5 km and velocity 8 km/s. Using 3.986 X 10 km /s as the gravitational parameter and 6378 km as the Earth's radius, what is the satellite's specific mechanical energy? 5 3 2 -16.265 Correct! Correct! -16.265 margin of error +/- 0.1 orrect Answer orrect Answer 0 / 1 pts Question 7 An earth-orbiting satellite is at a point in an orbit with altitude 545.5 km and velocity 7.3 km/s. Using 3.986 X 10 km /s as the gravitational parameter and 6378 km as the Earth's radius, what is the satellite's specific mechanical energy? 5 3 2 -704.061 ou Answered ou Answered -30.927 margin of error +/- 0.1 orrect Answer orrect Answer Don't forget about the important distinction between "radius" and "altitude."
8/25/22, 8:43 PM Quiz 1f: Orbital Mechanics - Fall 2022 Section Group 1P8 https://canvas.unm.edu/courses/19370/quizzes/144769 5/5 Quiz Score: 4.42 out of 7