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An astronomer on Earth observes a meteoroid in the southern sky approaching the Earth at a speed of 0.710c. At the time of its discovery the meteroid is 19.5 lightyears from the Earth. (a) Calculate the time interval required for the meteroid to reach the Earth as measured by Earthbound astronomer. 14.79 X Your response differs from the correct answer by more than 10%. Double check your calculations. yr (b) Calculate this time interval as measured by a tourist on the meteroid. yr (c) Calculate the distance to the Earth as measured by a tourist on the meteroid.

An astronomer on Earth observes a meteoroid in the southern sky approaching the Earth at a speed of 0.710c. At the time of its discovery the meteroid is 19.5 lightyears from the Earth. (a) Calculate the time interval required for the meteroid to reach the Earth as measured by Earthbound astronomer. 14.79 X Your response differs from the correct answer by more than 10%. Double check your calculations. yr (b) Calculate this time interval as measured by a tourist on the meteroid. yr (c) Calculate the distance to the Earth as measured by a tourist on the meteroid.

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An astronomer on Earth observes a meteoroid in the southern sky approaching the Earth at a speed of 0.710c. At the time of its discovery the meteroid is 19.5 lightyears from the Earth. (a) Calculate the time interval required for the meteroid to reach the Earth as measured by Earthbound astronomer. 14.79 x Your response differs from the correct answer by more than 10%. Double check your calculations. yr (b) Calculate this time interval as measured by a tourist on the meteroid. yr (c) Calculate the distance to the Earth as measured by a tourist on the meteroid. ly Consider electrons accelerated to a total energy of 18.7 GeV in the 3.00-km-long Stanford Linear Accelerator. (a) What is the factor y for the electrons? (b) What is the electrons' speed at the given energy? (Give your answer to ten decimal places.) (c) What is the length of the accelerator in the electrons' frame of reference when they are moving at their highest speed? cm
Transcribed Image Text:An astronomer on Earth observes a meteoroid in the southern sky approaching the Earth at a speed of 0.710c. At the time of its discovery the meteroid is 19.5 lightyears from the Earth. (a) Calculate the time interval required for the meteroid to reach the Earth as measured by Earthbound astronomer. 14.79 x Your response differs from the correct answer by more than 10%. Double check your calculations. yr (b) Calculate this time interval as measured by a tourist on the meteroid. yr (c) Calculate the distance to the Earth as measured by a tourist on the meteroid. ly Consider electrons accelerated to a total energy of 18.7 GeV in the 3.00-km-long Stanford Linear Accelerator. (a) What is the factor y for the electrons? (b) What is the electrons' speed at the given energy? (Give your answer to ten decimal places.) (c) What is the length of the accelerator in the electrons' frame of reference when they are moving at their highest speed? cm
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