A proton is accelerated from rest through a potential difference of 370 V. What is its final speed?
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A proton is accelerated from rest through a potential difference of 370 V. What is its final speed?
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- In a television tube electrons are accelerated through a voltage of 5000 volts. What is the speed of the electrons assuming that they were initially at rest? (Since this is Physics 222, do not use special relativity to calculate the answer even though these speeds are a fraction of the speed of light.) Express your answer to the nearest km/s.Chapter 37, Problem 043 How much work must be done to increase the speed of an electron from (a) 0.14c to 0.15c and (b) from 0.92c to 0.93c? Note that the speed increase is 0.01c in both cases. (a) Number Units (b) Number UnitsIf an electron is accelerated from rest through a potential difference of 1500 V, what speed does it reach? (e = 1.60 × 10-19 C, melectron = 9.11 × 10-31 kg) 2.3 × 107 m/s 1.5 × 107 m/s 5.3 × 1014 m/s 1.9 × 107 m/s 2.3 × 1014 m/s
- look at the picChapter 37, Problem 043 How much work must be done to increase the speed of an electron from (a) 0.14c to 0.15c and (b) from 0.92c to 0.93c? Note that the speed increase is 0.01c in both cases. (a) Number 0.7653 Units keV (b) Number Units keVDescribe your approach to determining the distance between the electron and proton in an atom if the potential energy U of the electron is known to be 14 eV. а. Use the law of conservation of energy. b. Use Coulomb's law. С. Use the definition of electrostatic potential energy U of one point charge q at position r in the presence of an electric potential. d. Use Newton's second law.