If the Moon were twice the distance from Earth than it currently is,the amount of time it would take to go around Earth would be roughly (the current orbital period of the Moon is four weeks)
A)11 weeks.
B)eight weeks.
C)six weeks.
D)88 weeks.

Question

Quizplus · Accepted Answer

The orbital period of a satellite is proportional to the 3/2 power of its orbital radius (Kepler's Third Law). If the Moon's distance is doubled, the period increases by a factor of 2^(3/2), which is approximately 2.83. Multiplying the current period (4 weeks) by 2.83 gives roughly 11 weeks.

If the Moon Were Twice the Distance from Earth Than