COLLEGE PHYSICS LL W/ 6 MONTH ACCESS
2nd Edition
ISBN: 9781319414597
Author: Freedman
Publisher: MAC HIGHER
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Chapter 27, Problem 78QAP
To determine
(a)
The approximate radius of the 238U nucleus.
To determine
(b)
What electric force does two protons on opposite ends of
To determine
(c)
If the electric force in part (b) were the only forces acting on the protons, what would be their acceleration just as they left the nucleus
To determine
(d)
Why do the protons in part (b) not accelerate apart?
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Students have asked these similar questions
Options:
a) Neither, both have the same final KE
b) the proton
The answer is (a) neither, but I am struggling to understand why. I included my work, so maybe you can help me understand where I am going wrong.
Things we know:
KE = 1/3 MV^2
Mass of electron : 9.1 x 10^-31 kg (smaller)
Mass of proton: 1.67 x 10^-27 kg (larger)
Force = same magnitude for both since they both have the same magnitude of charge in the same Efield
F=ma
2) In the figure below: a = 0.003m, b
0.004m, Q1 0.06 HC, Q2 0.08
µC, and q = 0.032 µC, Determine the
resultant Coulomb force F on q?
%3D
%3D
k=9x10^9 S.I *
a
Q2
O 2.2 N
O 1.6 N
1.9 N
0.040 N
1.3 N
A typical carbon nucleus contains 6 neutrons and 6 protons. The 6 protons are all positively charged and in very close proximity, with separations on the order of 10-15 meters, which should result in an enormous repulsive force. What prevents the nucleus from dismantling itself due to the repulsion of the electric force?
a. The attractive nature of the strong nuclear force overpowers the electric force.
b. The weak nuclear force barely offsets the electric force.
c. Magnetic forces generated by the orbiting electrons create a stable minimum in which the nuclear charged particles reside.
d. The attractive electric force of the surrounding electrons is equal in all directions and cancels out, leaving no net electric force.
Chapter 27 Solutions
COLLEGE PHYSICS LL W/ 6 MONTH ACCESS
Ch. 27 - Prob. 1QAPCh. 27 - Prob. 2QAPCh. 27 - Prob. 3QAPCh. 27 - Prob. 4QAPCh. 27 - Prob. 5QAPCh. 27 - Prob. 6QAPCh. 27 - Prob. 7QAPCh. 27 - Prob. 8QAPCh. 27 - Prob. 9QAPCh. 27 - Prob. 10QAP
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