# Space pilot Mavis zips past Stanley at a constant speed

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Space pilot Mavis zips past Stanley at a constant speed relative to him of O.800e. Mavis and Stanley start timers at zero when the front of Mavis's ship is directly above Stanley. When Mavis reads 5.00 s on her timer, she turns on a bright light under the front of her spaceship.

(a) Use the Lorentz coordinate transformation derived in Exercise 37.14 and Example 37.7 to calculate x and f as measured by Stanley for the event of turning on the light.

(b) Use the time dilation formula, Eq. (37.6), to calculate the time interval between the two events (the front of the spaceship passing overhead and turning on the light) as measured by Stanley. Compare to the value oft you calculated in part (a).

(c) Multiply the time interval by Mavis's speed, both as measured by Stanley, to calculate the distance she has traveled as measured by him when the light turns on. Compare to the value of x you calculated in part (a).

(a) Use the Lorentz coordinate transformation derived in Exercise 37.14 and Example 37.7 to calculate x and f as measured by Stanley for the event of turning on the light.

(b) Use the time dilation formula, Eq. (37.6), to calculate the time interval between the two events (the front of the spaceship passing overhead and turning on the light) as measured by Stanley. Compare to the value oft you calculated in part (a).

(c) Multiply the time interval by Mavis's speed, both as measured by Stanley, to calculate the distance she has traveled as measured by him when the light turns on. Compare to the value of x you calculated in part (a).

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