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Module 20: Coordinates for Time—Exercise 2a & 2b
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Question 1 of 2
1. Question
At 4:00 pm, George, who is at the origin of the $(x,y)$ coordinate system, sends out a flash of light. Gracie is located at position $(5,12)$, where the units on the axes are light-minutes. As Gracie awaits the flash, she calculates the time at which she should set her clock to ensure that the usual clock synchronization procedure will be successful. What’s the answer?
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Question 2 of 2
2. Question
At 12 noon, George—who is at the origin of the ($x$,$y$) coordinate system—sends out a flash of light. Gracie is located at position (15,8), where the units on the axes are light-minutes. As Gracie awaits the flash, she calculates the time at which she should set her clock to ensure that the usual clock synchronization procedure will be successful. What’s the answer?
CorrectIncorrect