Multiple Choice
According to Einstein, is a frame at rest on the earth's surface a reasonably accurate inertial frame (ignoring the earth's rotation) ?
A) No, such a frame is accelerating upward.}
B) It is not a real inertial frame, but we can treat it as one if we ignore external gravitational forces acting on objects inside the frame.
C) Yes.
D) It depends (explain) .
Correct Answer:

Verified
Correct Answer:
Verified
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