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Which effect increases when a GPS satellite's velocity increases?

A)Spacetime dilation effects on clock
B)Signal attenuation due to atmospheric drag
C)Doppler shift affecting the receiver
D)Gravitational blueshift of its transmission

💡 Explanation

Spacetime dilation increases because special relativity's velocity component directly contributes to time dilation effects on the satellite's onboard clock; therefore, the accuracy decreases if uncorrected, rather than effects due to atmospheric drag, which are separate disturbances.

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