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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

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

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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 97. An object has a rest mass of 3 kg and is moving at a speed of 0.85c relative to an observer. What is the relativistic mass of the object? A. 3 kg B. 4.5 kg C. 6 kg D. 7.5 kg 98. The proper time interval between two events in a spaceship is 3 seconds. According to an observer on Earth, the time interval between the events is 6 seconds. What is the spaceship's speed relative to the observer? A. 0.5c B. 0.75c C. 0.9c D. 0.95c 99. A 3-meter-long rod is moving at a speed of 0.8c relative to an observer. What is the length of the rod according to the observer? A. 1.2 m B. 1.8 m C. 2.4 m D. 3.0 m 100. A spaceship is moving at a speed of 0.75c relative to an observer on Earth. The spaceship emits light with a wavelength of 600 nm. What is the wavelength of the light according to the observer when the spaceship is moving towards the observer? A. 343 nm B. 463 nm C. 600 nm D. 737 nm INSTRUCTION
Transcribed Image Text: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 97. An object has a rest mass of 3 kg and is moving at a speed of 0.85c relative to an observer. What is the relativistic mass of the object? A. 3 kg B. 4.5 kg C. 6 kg D. 7.5 kg 98. The proper time interval between two events in a spaceship is 3 seconds. According to an observer on Earth, the time interval between the events is 6 seconds. What is the spaceship's speed relative to the observer? A. 0.5c B. 0.75c C. 0.9c D. 0.95c 99. A 3-meter-long rod is moving at a speed of 0.8c relative to an observer. What is the length of the rod according to the observer? A. 1.2 m B. 1.8 m C. 2.4 m D. 3.0 m 100. A spaceship is moving at a speed of 0.75c relative to an observer on Earth. The spaceship emits light with a wavelength of 600 nm. What is the wavelength of the light according to the observer when the spaceship is moving towards the observer? A. 343 nm B. 463 nm C. 600 nm D. 737 nm INSTRUCTION
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