The fact that the electron has a negative charge and the proton has a positive charge is due to a convention established by Benjamin Franklin. Would there have been any significant consequences if Franklin had chosen the opposite convention? Is there any advantage to naming charges plus and minus as opposed to, say, A and B?
The fact that the electron has a negative charge and the proton has a positive charge is due to a convention established by Benjamin Franklin. Would there have been any significant consequences if Franklin had chosen the opposite convention? Is there any advantage to naming charges plus and minus as opposed to, say, A and B?
The fact that the electron has a negative charge and the proton has a positive charge is due to a convention established by Benjamin Franklin. Would there have been any significant consequences if Franklin had chosen the opposite convention? Is there any advantage to naming charges plus and minus as opposed to, say, A and B?
Expert Solution & Answer
To determine
Whether there are any significant consequences if Franklin had chosen the opposite convention or not and whether there is any advantage to naming the charges plus and minus as opposed to, say
A and
B.
Answer to Problem 1CQ
There are no such significant consequences if Franklin had chosen the opposite convention and there is big advantage to naming the charges plus and minus as opposed to, say
A and
B.
Explanation of Solution
The sign convention of the charge of electron and proton is minus and plus respectively and when the charges of the electron is interchanged with each other, there is no such effect on the basic science because the total charge of the system is still zero.
The use of plus and is minus signs do have a big advantage because it shows that the system has a zero charge which means that there is an equal amount of the positive and negative charge and when the labels are opposed to
A and
B it becomes difficult to define the zero charge.
Conclusion:
Therefore, there are no such significant consequences if Franklin had chosen the opposite convention or not.
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Question 3 of 17
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L
L
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In the figure above, three uniform thin rods, each of length L, form
an inverted U. The vertical rods each have a mass m; the horizontal
rod has a mass 3m.
NOTE: Express your answer in terms of the variables given.
(a) What is the x coordinate of the system's center of mass?
xcom
L
2
(b) What is the y coordinate of the system's center of mass?
Ycom
45
L
X
Q Search
MD
bp
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Sketch the harmonic on graphing paper.
Exercise 1:
(a) Using the explicit formulae derived in the lectures for the (2j+1) × (2j + 1) repre-
sentation matrices Dm'm, (J/h), derive the 3 × 3 matrices corresponding to the case
j = 1.
(b) Verify that they satisfy the so(3) Lie algebra commutation relation:
[D(Î₁/ħ), D(Î₂/h)]m'm₁ = iƊm'm² (Ĵ3/h).
(c) Prove the identity
3
Dm'm,(β) = Σ (D(Ρ)D(Ρ))m'¡m; ·
i=1
Campbell Essential Biology with Physiology (5th Edition)
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