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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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Chapter
Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

Calculate the speed of (a) an electron and (b) a proton with a kinetic energy of 1.00 electron volt (eV). (c) Calculate the average translational kinetic energy in cV of a 3.00 × 102 K ideal gas particle. (Recall from Topic 10 that 1 2 mv2 = 3 2 kBT.)

(a)

To determine
The speed of electron.

Explanation

Given info: The kinetic energy of electron is 1 eV.

Explanation:

Formula to calculate the speed is,

v=2Ekme

  • Ek is the kinetic energy.
  • me is the mass of electron.

Substitute 1 eV for Ek and 9.11×1031kg for me .

v=2(1eV)9

(b)

To determine
The speed of proton.

(c)

To determine
The average translational kinetic energy.

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