94. A light source moving away from an observer at a speed of 0.2c emits light with a wavelength of 450 nm. What is the wavelength of the light according to the observer? A. 405 nm B. 450 nm C. 495 nm D. 540 nm

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94. A light source moving away from an observer at a speed of 0.2c emits light with a
wavelength of 450 nm. What is the wavelength of the light according to the observer?
A. 405 nm
B. 450 nm
C. 495 nm
D. 540 nm
95. Two events occur 5 seconds apart according to an observer on Earth. What is the time
difference between the events according to an observer moving at 0.6c relative to Earth?
A. 2 s
B. 5 s
C. 10 s
D. 15 s
96. An observer on Earth measures a spaceship's length to be 2,000 meters when it is at rest. If
the spaceship's speed relative to the observer is 0.92c, what is the length of the spaceship
according to the observer when it is moving?
A. 560 m
B. 800 m
C. 1,200 m
D. 1,600 m
Transcribed Image Text:94. A light source moving away from an observer at a speed of 0.2c emits light with a wavelength of 450 nm. What is the wavelength of the light according to the observer? A. 405 nm B. 450 nm C. 495 nm D. 540 nm 95. Two events occur 5 seconds apart according to an observer on Earth. What is the time difference between the events according to an observer moving at 0.6c relative to Earth? A. 2 s B. 5 s C. 10 s D. 15 s 96. An observer on Earth measures a spaceship's length to be 2,000 meters when it is at rest. If the spaceship's speed relative to the observer is 0.92c, what is the length of the spaceship according to the observer when it is moving? A. 560 m B. 800 m C. 1,200 m D. 1,600 m
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