Posted by **sara** on Thursday, August 23, 2012 at 8:43pm.

If a clock in an airplane is found to slow down by 5 parts in 1013, (i.e., ∆t/∆to = 1.0 + 5.0 × 10. −13), at what speed is the airplane traveling? (Hint: You might need to use an expansion for y)

I am not sure which equation to use can someone please help me.

L=L0(square root 1-v'2/c'2)

&=1/square root 1-v'2/c'2

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