AP Physics 1mediummcq1 pt
Earth's gravitational field at its surface is g. At a height equal to Earth's radius above the surface, the field is
A.g/4
B.g/2
C.g
D.g/9
Explanation
Core Concept
Distance from the center doubles (R to 2R), and the field falls as 1/r²: g/4.
Correct Answer
Ag/4
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