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What was Einstein’s second postulate (the principle of relativity being the first)?
ByAdmin3. Question 3 What was Einstein’s second postulate (the principle of relativity being the first)? 1 point  The principle of the luminiferous ether The principle of Galileo The principle…
Of the world lines shown below, which represents an object moving with the highest velocity?
ByAdmin10. Question 10 Of the world lines shown below, which represents an object moving with the highest velocity? 1 point Â
In the lecture on “Spaceships on a rope,” the reason that the rope breaks according to the perspective of the stationary observer (A) is:
ByAdmin5. Question 5 In the lecture on “Spaceships on a rope,” the reason that the rope breaks according to the perspective of the stationary observer (A) is: 1 point  …
In the “good guys vs. bad guys” example done in lecture, the bad guys invented a super ship and launched it 4 years after the good guys had left the planet to try to catch the good guys. The good guys were traveling at 0.6c. The bad guys’ super ship traveled at 3c. How much of a head start in distance did the good guys have (as calculated in the frame of reference of the bad guys’ planet)?
ByAdmin9. Question 9 In the “good guys vs. bad guys” example done in lecture, the bad guys invented a super ship and launched it 4 years after the good guys…
In the “good guys vs. bad guys” example done in lecture, the good guys’ ship traveled away from the bad guys’ home planet at 0.6c after the signing of the treaty. In the frame of reference of the bad guys’ planet, where was the good guys’ ship after it had been traveling for 5 years?
ByAdmin9. Question 9 In the “good guys vs. bad guys” example done in lecture, the good guys’ ship traveled away from the bad guys’ home planet at 0.6c after the…
Consider a situation that is similar to that in one of the video lectures, i.e., Alice observing Bob traveling from Earth to a star at a certain distance from Earth. Assume that the Lorentz factor for the relative velocity between Alice’s frame of reference (the Earth-star frame of reference) and Bob’s frame of reference (the spaceship frame of reference) has a value of 4. From Bob’s perspective, he’s at rest and he sees the star rushing toward him. The elapsed time on Bob’s clock between the time Earth passes him and the star passes him is 12 years. How much time does he observe elapse on one of Alice’s clocks?
ByAdmin2. Question 2 Consider a situation that is similar to that in one of the video lectures, i.e., Alice observing Bob traveling from Earth to a star at a certain…