Please answer everything asap I really need help 89. A 1-meter-long rod is moving at a speed of 0.4c relative to an observer. If the observermeasures an event at the front of the rod to have occurred 1 second after an event at theback of the rod, what is the time difference between the two events according to an observeron the rod?A. 0.2 sB. 0.5 sC. 1.0 sD. 2.0 s90. An observer on Earth measures a frequency of 6 x 10^14 Hz for light emitted by a movingspaceship. The spaceship is moving towards the observer with a speed of 0.7c. What is thefrequency of the light according to the passengers on the spaceship?A. 3.6 x 10^14 HzB. 6 x 10^14 HzC. 8.4 x 10^14 HzD. 10.2 x 10^14 Hz91. A clock on a spaceship ticks every 3 seconds according to the passengers. An observer onEarth measures the time between ticks to be 4 seconds. What is the speed of the spaceshiprelative to the observer on Earth?A. 0.5cB. 0.6cC. 0.7c

Answered: Image /qna-images/answer/070aaee4-2a87-4532-a986-7b9b6659368c.jpg

89. A 1-meter-long rod is moving at a speed of 0.4c relative to an observer. If the observer measures an event at the front of the rod to have occurred 1 second after an event at the back of the rod, what is the time difference between the two events according to an observer on the rod? A. 0.2 s B. 0.5 s C. 1.0 s D. 2.0 s

89. A 1-meter-long rod is moving at a speed of 0.4c relative to an observer. If the observer measures an event at the front of the rod to have occurred 1 second after an event at the back of the rod, what is the time difference between the two events according to an observer on the rod? A. 0.2 s B. 0.5 s C. 1.0 s D. 2.0 s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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