Velma passes mort at a speed of 0.75c. at this speed the, Ask an Expert

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Q. Velma passes Mort at a speed of 0.75c. At this speed, the "time dilation factor" is 1.5. In other words, Mort observes a 1-second tick of Velma's clock to take 1.5 seconds. Suppose that they are born at the same time, and that Mort observes himself to live 30 years. As Mort dies, how old will he observe Velma to be?

Q. An electromagnetic plane wave in vacuum has a maximum electric field of magnitude Emax = 218 N/C and a frequency of 23 MHz. Find the maximum magnitude of magnetic field, B, in this EM wave.

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