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Chapter 36: Q. 39 (page 1060)
At what speed, as a fraction of , is a particle’s kinetic energy twice its rest energy?
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Your job is to synchronize the clocks in a reference frame. You are going to do so by flashing a light at the origin at . To what time should the clock at be preset?
Two rockets are each long in their rest frame. Rocket Orion, traveling at relative to the earth, is overtaking rocket Sirius, which is poking along at a mere According to the crew on Sirius, how long does Orion take to completely pass? That is, how long is it from the instant the nose of Orion is at the tail of Sirius until the tail of Orion is at the nose of Sirius?
The diameter of the solar system is light hours. A spaceship crosses the solar system in hours, as measured on earth. How long, in hours, does the passage take according to passengers on the spaceship?
Through what potential difference must an electron be accelerated, starting from rest, to acquire a speed of ?
At what speed, as a fraction of , will a moving rod have a length that of an identical rod at rest?
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