# Electron Volt

What is the speed of a 300-eV proton? What is the speed of a 300-eV electron?

Key: 2.40x10^5, 1.03x10^7

Â© BrainMass Inc. brainmass.com February 24, 2021, 2:37 pm ad1c9bdddfhttps://brainmass.com/physics/electricity-magnetism/electron-volt-32479

#### Solution Preview

Assume that E = (1/2)mv^2 (meaning no relativistic effects)

v = (2E/m)^(1/2)

so then ...

#### Solution Summary

The solution provides step-by-step calculations for solving the speed of an electron and a proton.

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