The heat and light radiated by stars is the result of fusion, the process in which energy is released when hydrogen nuclei (protons) smash into each other to form helium. Fusion is not easy to achieve since the protons' like charges causes a huge electric-force repulsion between them when they are at the small distances (on the order of 1 fm 10-15 m) required to form a nucleus. Part A To see why fusion only occurs at very high temperatures (like at the center of stars), consider this basic problem: Two protons are initially at rest and very far apart from each. With what minimum speed must one of the protons be launched in order for it to overcome the electric repulsion and to end up within 1.9 fm of the other? (For simplicity, assume the other proton is being held in place.) Express your answer numerically using three significant figures

The heat and light radiated by stars is the result of fusion, the process in which energy is released when hydrogen nuclei (protons) smash into each other to form helium. Fusion is not easy to achieve since the protons' like charges causes a huge electric-force repulsion between them when they are at the small distances (on the order of 1 fm 10-15 m) required to form a nucleus. Part A To see why fusion only occurs at very high temperatures (like at the center of stars), consider this basic problem: Two protons are initially at rest and very far apart from each. With what minimum speed must one of the protons be launched in order for it to overcome the electric repulsion and to end up within 1.9 fm of the other? (For simplicity, assume the other proton is being held in place.) Express your answer numerically using three significant figures

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

The heat and light radiated by stars is the result of fusion, the process in which energy is released when hydrogen nuclei (protons) smash into each other to form helium. Fusion is not easy to achieve since the protons' like charges causes
a huge electric-force repulsion between them when they are at the small distances (on the order of 1 fm = 10-15 7) required to form a nucleus.
▼
Part A
To see why fusion only occurs at very high temperatures (like at the center of stars), consider this basic problem: Two protons are initially at rest and very far apart from each. With what minimum speed must one of the protons be
launched in order for it to overcome the electric repulsion and to end up within 1.9 fm of the other? (For simplicity, assume the other proton is being held in place.)
Express your answer numerically using three significant figures.
▸ View Available Hint(s)
| ΑΣΦ
v=6.57.10
Submit Previous Answers
X Incorrect; Try Again
Review | Constants
?
m/s

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