Show that Frank in the fixed system will also determine the time dilation result by having the sparkler be at rest in the system K.
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Show that Frank in the fixed system will also determine the time dilation result by having the sparkler be at rest in the system K.
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- A rod moving relative to an observer is measured to have its length Lmoving contracted to one-half of its length when measured at rest. Find the value of u/c for the rod's rest frame relative to the observer's frame of reference.2. An observer P stands on a train station platform as a high-speed train passes by at u/c = 0.8. The observer P, who measures the platform to be 60 m long, notices that the front and back ends of the train line up exactly with the ends of the platform at the same time. How long does it take the train to pass P as he stands on the platform, as measured by his watch?Consider a particle that, once it comes to existence, decays on average after a short time t, where t is a time measured in the particle's frame of reference. If such a particle travels with speed v in an observer’s frame, what is the distance the particle has travelled as observed by the observer?