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In: Physics

A cow that is 2 meters long watches a train passing at 90% of the speed...

A cow that is 2 meters long watches a train passing at 90% of the speed of light. According to the cow the train measures 15 meters.

What is the factor  of temporal expansion between time in the benchmark of the cow and time in the benchmark of the train?

b. How tall is the cow according to the train passengers? vs.

How long does the train take to pass the cow according to the cow?

d. According to the train passengers, how long does the train take to pass the cow?

e. According to the passengers of the train, how long is the train?

f. How long does the nose of the train take to pass the cow according to the cow?

g. How long does the nose of the train take to pass the cow according to the train passengers?

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