For a moon orbiting its planet, r p is the shortest distance between the moon and its planet and r a is the longest distance between the moo

Question

For a moon orbiting its planet, r p is the shortest distance between the moon and its planet and r a is the longest distance between the moon and its planet. What is a moon’s orbital eccentricity if r p is equal to 0.27r a?
A. 0.57
B. 0.27
C. 0.48
D. 0.65

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Acacia 2 months 2021-07-22T18:28:34+00:00 1 Answers 3 views 0

Answers ( )

    0
    2021-07-22T18:30:12+00:00

    Answer:

    Explanation:

    The eccentric formula for ellipse can be calculated using

    e = (r_a – r_p) / (r_a + r_p)

    r_a is the longest distance between the moon and its planet

    r_p=0.27 r_a is the shortest distance between the moon and its planet

    Then,

    e = (r_a – r_p) / (r_a + r_p)

    e = (r_a – 0.27 r_a) / (r_a + 0.27 r_a)

    e = 0.73r_a / 1.27 r_a

    e = 0.57

    This is the moon orbital eccentric

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