Q64 · Practice questionComplex familiar4 marks
QUESTION 64 (4 marks)
A satellite orbits Earth in a circular orbit of radius . Take Earth’s mass as . Determine the orbital period in minutes.
WORKED SOLUTION
4 marksPractice marking scheme
ANSWER
.
Worked solution
Use
Substitution gives
Converting to minutes:
Selects correct orbital-period relationship.
Substitutes quantities consistently.
Calculates period in seconds.
Converts to minutes.
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