Question
Asked Dec 27, 2019
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The rest energy of an electron is 0.511 MeV. The rest energy of a proton is 938 MeV. Assume both particles have kinetic energies of 2.00 MeV. Find the speed of (a) the electron and (b) the proton. (c) By how much does the speed of the electron exceed that of the proton? Note: Perform the calculations in MeV; don’t convert the energies to joules. The answer is sensitive to rounding.

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Expert Answer

Step 1

(a) The total energy of the particle is

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Step 2

Use equation (1) to solve for the speed of the particle.

Physics homework question answer, step 2, image 1
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Step 3

Substitute the values in equation (2) to...

Physics homework question answer, step 3, image 1
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