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PhDeezNutz's latest activity
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PhDeezNutz
reacted to
romsofia's post
in the thread
Quantum
Math Textbooks to Read Before Starting QFT
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As I've gotten older, I realize some people are really good at just accepting that's how something works, and using it accordingly. I...
Today, 8:48 AM
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PhDeezNutz
reacted to
haushofer's post
in the thread
Other
What are you reading now? (STEM only)
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My name is Bond. Molecular Bond.
Yesterday, 11:41 AM
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PhDeezNutz
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Vanadium 50's post
in the thread
B
Will we ever communicate with extraterrestial life in a reasonable time frame?
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I save that for special occasions, along with Billy Madison and "I award you no points, and may God have mercy on your soul."
Saturday, 5:31 AM
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PhDeezNutz
reacted to
Orodruin's post
in the thread
Use substitution to solve the definite integral
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Probably because it (the first expression) is a typo. It is missing the ##\cos\theta## from the ##dx##.
Saturday, 1:51 AM
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PhDeezNutz
reacted to
Vanadium 50's post
in the thread
Linear Algebra
How hard is this Linear Algebra textbook?
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I used Anton, so I don't have a dog in this hunt. There are two linear algebras, with different goals. One is designed around...
Apr 10, 2024
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PhDeezNutz
reacted to
jtbell's post
in the thread
Classical
What Chapters of Halliday & Resnick Are Covered in Physics I & II?
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Some / many schools put the “modern physics” material (chapters 27-44) into a third course.
Apr 9, 2024
P
PhDeezNutz
reacted to
Orodruin's post
in the thread
Magnetic dipole moment and integration surfaces (Introductory Electromagnetics - Magnetistatics)
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To add a little bit more: You can even use different surfaces in the computation of each component of the moment. Ultimately, the...
Apr 8, 2024
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PhDeezNutz
reacted to
Frabjous's post
in the thread
Classical
Looking for a thermodynamics book that 'ties it all together'
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One can argue that all that baggage is why chemists/chemical engineers have a better undertanding of thermodynamics than most physicists.
Apr 8, 2024
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PhDeezNutz
reacted to
PeroK's post
in the thread
B
Confused about dot product multiplication
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Five points about the dot product. You should find it useful. It crops up all the time in mathematics. It has some important physical...
Apr 8, 2024
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PhDeezNutz
replied to the thread
Magnetic dipole moment and integration surfaces (Introductory Electromagnetics - Magnetistatics)
.
OP are you familiar with cylindrical coordinates? The setup mentioned in your problem is a slight variation of that.
Apr 8, 2024
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PhDeezNutz
reacted to
Orodruin's post
in the thread
Magnetic dipole moment and integration surfaces (Introductory Electromagnetics - Magnetistatics)
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Like
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To substantiate that, consider two surface integrals of ##d\vec S## $$ I_1 = \int_{S_1} d\vec S, \quad I_2 = \int_{S_2} d\vec S $$ where...
Apr 8, 2024
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PhDeezNutz
reacted to
Orodruin's post
in the thread
What are Good Books on Tensors for Understanding Einstein's Field Equation?
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Abstract index notation is just a notational convention within tensor calculus/differential geometry. It is not a separate subject in...
Apr 7, 2024
P
PhDeezNutz
reacted to
Orodruin's post
in the thread
What are Good Books on Tensors for Understanding Einstein's Field Equation?
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Say, that cover looks a lot like half of my profile image … weird! 🥸
Apr 7, 2024
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PhDeezNutz
reacted to
berkeman's post
in the thread
What are Good Books on Tensors for Understanding Einstein's Field Equation?
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Then I'll say it... :wink: https://www.amazon.com/Mathematical-Methods-Physics-Engineering-Mattias-ebook/dp/B086H3LMZF/?tag=pfamazon01-20
Apr 7, 2024
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PhDeezNutz
reacted to
Mark44's post
in the thread
Conjugate vs Complex Conjugate
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You can rewrite a + b as b + a, so its conjugate is b - a. The important point is that you want the product to be the difference of two...
Apr 5, 2024
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