7. Determine that the particle must travel at the speed of light in vacuum (C) so that the particle has The kinetic energy is equal to the still energy Answer[S 3c/2]
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![7. Determine that the particle must travel at the speed of light in vacuum (C) so
that the particle has The kinetic energy is equal to the still energy
Answer[3c/2]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6db2851e-9cd0-43c6-8019-3ba6ef81dbe1%2F6fcc4871-dc4d-4604-984f-e299d2ee30a6%2Fw0b6hla_processed.jpeg&w=3840&q=75)
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- 1. Suppose a spaceship heading straight toward the Earth at 0.650c can shoot a canister at 0.400c relative to the ship. (a) What is the velocity of the canister relative to Earth, if it is shot directly at Earth? (b) If it is shot directly away from Earth?4. Bob is moving away from Alice with speed of 0.5c. Carlos is moving away from Alice and to Bob with speed of 0.8c. What is the speed of Carlos as measured by perpendicular Bob?At what speed, as a fraction of c, must an electron move so that its total energy is 17% more than its rest mass energy? ΜΕ ΑΣΦ ? -C
- 2. An alternative derivation of the mass-energy formula E, = moc² also given by Einstein, is based on the principle that the location of the center of mass (CM) of an isolated system cannot be changed by any process that occurs inside the system. The Figure below shows a rigid box of length L that rests on a frictionless surface; the mass M of the box is equally divided between its two ends. A burst of electromagnetic radiation of energy E, is emitted by one end of the box. According to classical physics, the radiation has the momentum p = "0%c , and when it is emitted, the box recoils with the speed v z Eo/ so that the total momentum of Mc the system remains zero. After a time t z L/c the radiation reaches the other end of the box and is absorbed there, which brings the box to a stop after having moved the distance S. If the CM of the box is to remain in its original place, the radiation must have transferred mass from one end to the other. Show that this amount of mass is m, = c2.5. A stationary observer fires a laser. An observer in a space ship is moving to the left at 0.99c. What is the magnitude of the speed of light as measured by the observer in the ship ? Just don't state that it is c. Show that it is e7