A proton moves with a speed of 0.86c. Find the speed of an electron that has the same momentum and kinetic energy. (Express the answer as the quantity of one minus a number times c.) same momentum (1- (1- )xc )xc same kinetic energy
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- How much work must be done to accelerate an electron to accelerate it from rest to a speed of 0.902c?What are (a) the kinetic energy, (b) the rest energy, and (c) the total energy of a 1.2 g particle with a speed of 0.80 c ? Part A Express your answer using two significant figures. ΜΕ ΑΣΦ Ekinetic=263 Submit Previous Answers Request Answer × Incorrect; Try Again; 5 attempts remaining Part B Express your answer using two significant figures. ΜΕ ΑΣΦ Erest = Submit Request Answer Part C Express your answer using two significant figures. ΜΕ ΑΣΦ Etotal = Submit Request Answer ? ? ? J J JNeeds Complete typed solution with 100 % accuracy.
- When traveling past an observer with a relative speed v, a rocket is measured to be 9.00 m long. When the rocket moves with a relative speed 2v, its length is measured to be 4.90 m. Part A What is the speed v? v = VO ΑΣΦ ? Submit Request Answer ་ Part B What is the proper length of the rocket? CAntimatter: When a particle and its anti-particle collide, energy and momentum are conserved. However, the particles can annihilate each other and produce two gamma rays - high energy photons. An electron and an anti-electron each have a rest mass of 9.11 × 10-31 kg. Suppose the particles are each accelerated to a speed of 0.98c in a particle accelerator with a length of 1543 m for a head on collision. (Each particle is moving at this speed with respect to the lab, and the particles are moving in opposite directions.) They collide head on and annihilate. What is the wavelength of the gamma rays produced in this collision?A particle initially has a speed of 0.37c. (Enter your answers in terms of c. Round your answers to at least three decimal places.) (a) At what speed does its momentum increase by 1%? 0.41 X с (b) At what speed does its momentum increase by 10%? (c) At what speed does its momentum increase by 100%?
- If someone travels at v = 0.99c, she can become younger than her children (assuming the kids stay home on Earth). In one or two sentences, explain how this is possible.Part A How much work is required to accelerate a proton from rest up to a speed of 0.983c? 15| ΑΣΦ W = 6.69 10 Submit Previous Answers Request Answer Part B X Incorrect; Try Again; 3 attempts remaining 13 What would be the momentum of this proton? ID| ΑΣΦ P = 5029 Submit Previous Answers Request Answer ? ? X Incorrect; Try Again; 4 attempts remaining J kg. m/sA particle is moving at 0.75c relative to a lab on Earth. By what percentage is the Newtonian expression for its momentum in error? (The percentage error is the difference between the erroneous and correct values, divided by the correct one).
- How much work must be done on an electron to accelerate it from rest to a speed of 0.892c? Number i 3.24e-14 Units JUranium-238 decays via the alpha decay process. Part (a) Calculate the energy released in units of megaelectron volts when a uranium-238 nucleus undergoes alpha decay. Part (b) What fraction of the mass of a single uranium-238 nucleus is destroyed in the decay? Part (c) Why is difficult to observe the change in mass for a macroscopic sample of uranium-238?How fast is a rocket going it its passengers measure its length to be 25.5 but the people on earth watching it go by measure its length to be 18.8? Please give your answer as a fraction of c. For example, if v=1.5*10^ 8 m/s,use V/c=0.5 .