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Chapter 36: Relativity

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Pages: 1022 - 1062

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106 Questions for Chapter 36: Relativity

  1. A firecracker explodes in reference frame S at t=1.0s. A second firecracker explodes at the same position at t=3.0s. In reference frame S′, which moves in the x-direction at speed v, the first explosion is detected at x'=4.0mand the second at x'=-4.0m

    Found on Page 1059
  2. FIGURE Q36.1 shows two balls. What are the speed and direction of each (a) in a reference frame that moves with ball 1 and (b) in a reference frame that moves with ball 2?

    Found on Page 1058
  3. You are standing at x=9.0kmand your assistant is standing a x=3.0kmLightning bolt 1strikes atx=0kmand a lightning bolt 2strikes atx=12.0km. You see the flash from bolt 2att=10msand the flash from bolt1att=50ms According to your assistant, were the lightning strikes simultaneous? If not, which occurred first, and what was the t

    Found on Page 1059
  4. Particle A has half the mass and twice the speed of particle B. Is the momentum pA less than, greater than, or equal to pB? Explain.

    Found on Page 1058
  5. You are standing at x=9.0kmand your assistant is standing at x=3.0km.Lightning bolt 1strikes at x=0kmand lightning bolt 2strikes at x=12.0km.You see the flash from bolt 2at t=10μsand the flash from bolt 1att=50μs. According to your assistant, were the lightning strikes simultaneous? If not, which occurred first, and what was the time dif

    Found on Page 1059
  6. Event A occurs at space-time coordinates (300m,2μs).

    Found on Page 1058
  7. You are standing at x=9.0km.Lightning bolt 1strikes at x=0kmand lightning bolt 2strikes at x=12.0km. Both flashes reach your eye at the same time. Your assistant is standing at x=3.0km. Does your assistant see the flashes at the same time? If not, which does she see first, and what is the time difference betw

    Found on Page 1059
  8. You are flying your personal rocket craft at 0.90cfrom Star Atoward Star B. The distance between the stars, in the stars’ reference frame, is 1.0ly. Both stars happen to explode simultaneously in your reference frame at the instant you are exactly halfway between them. Do you see the flashes simultaneously? If not, which do you see first, and what is the time difference between the two?

    Found on Page 1059
  9. A cosmic ray travels 60km through the earth’s atmosphere in 400μs as measured by experimenters on the ground. How long does the journey take according to the cosmic ray?

    Found on Page 1059
  10. At what speed, as a fraction of c,does a moving clock tick at half the rate of an identical clock at rest?

    Found on Page 1059

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