ch37-p020 - 20. The time-dilation information in the...

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(e) Eq. 2 in Table 37-2 gives () ( ) 2 21 98 // (2.00) 40.0 10 s (0.866)(20.0 m) /(2.998 10 m/s) 35.5 ns . ttt tv x c t x c γγ β ′′′ ∆= −= ∆−∆ = ∆−∆ ⎡⎤ × ⎣⎦ =− In absolute value, the two events are separated by 35.5 ns. (f) The negative sign obtained in part (e) implies event 2 occurred before event 1. 20. The time-dilation information in the problem (particularly, the 15 s on “his wristwatch… which takes 30.0 s according to you”) reveals Lorentz factor is γ = 2.00 (see Eq. 37-9), which implies his speed is
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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