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← ScienceWhich mechanism causes increased orbital period for GPS satellites?
A)Gravitational time dilation✓
B)Special relativity only
C)Atmospheric drag variance
D)Radiation pressure variance
💡 Explanation
GPS satellites experience gravitational time dilation because spacetime curvature near Earth slows their onboard clocks; therefore, their orbital period appears longer to a ground observer, rather than resulting from velocity alone.
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