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Bob is moving to the right (positive x direction) in his spaceship at a velocity v, and Alice is observing him. If we want to draw Bob’s world line on Alice’s spacetime diagram, how do we figure out where it goes?
ByAdmin4. Question 4 Bob is moving to the right (positive x direction) in his spaceship at a velocity v, and Alice is observing him. If we want to draw Bob’s…
Which world line represents an object moving to the right along the x axis and slowing down (decelerating)?
ByAdmin10. Question 10 Which world line represents an object moving to the right along the x axis and slowing down (decelerating)? 1 point
Of the following velocities, at what velocity (approximately) does the Lorentz factor start to become noticeably different from the value of 1 (where c is the speed of light)?
ByAdmin8. Question 8 Of the following velocities, at what velocity (approximately) does the Lorentz factor start to become noticeably different from the value of 1 (where c is the speed…
In the “pole in the barn” example done in lecture, how can Bob observe/photograph the front of the pole to be located at the rear door of the barn at 44.4 nanoseconds and the rear of the pole to be located at the front door of the barn at 44.4 nanoseconds (so the entire pole is in the barn), while Alice agrees with Bob’s clock readings but never herself observes the pole to be entirely within the barn?
ByAdmin8. Question 8 In the “pole in the barn” example done in lecture, how can Bob observe/photograph the front of the pole to be located at the rear door of…
Why did Einstein describe his light quantum proposal as “heuristic”?
ByAdmin2. Question 2 Why did Einstein describe his light quantum proposal as “heuristic”? 1 point Because he did not believe it was correct. Because he viewed it as a potentially…
What was the goal of the Michelson-Morley experiment?
ByAdmin4. Question 4 What was the goal of the Michelson-Morley experiment? 1 point To demonstrate the commercial feasibility of incandescent lighting. To detect the influence of an “ether wind”…