The speeds of an electron and a proton have been measured to the same uncertainty. Which one has a larger uncertainty in position?A. The proton, because it’s more massive.B. The electron, because it’s less massive.C. The uncertainty in position is the same, because the uncertainty in velocity is the same.

The speeds of an electron and a proton have been measured to the same uncertainty. Which one has a larger uncertainty in position?A. The proton, because it’s more massive.B. The electron, because it’s less massive.C. The uncertainty in position is the same, because the uncertainty in velocity is the same.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter7: Quantum Mechanics

Section: Chapter Questions

Problem 33P: A gas of helium atoms at 273 K is in a cubical container with 25.0 cm on a side. (a) What is the...

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(a) The lifetime of a highly unstable nucleus is 10-20. What is the smallest uncertainty in its decay energy? (b) Compare this with the rest energy of an electron.
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