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PhDeezNutz's latest activity
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PhDeezNutz
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Vanadium 50's post
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Global properties of the universe
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First, those are words. The truth is in the math. Second, those are your words. We need to flesh out what you need. Finally, you can...
Yesterday, 7:17 AM
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PhDeezNutz
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Vanadium 50's post
in the thread
Programs
Help me decide: physics or chemistry?
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Why do you need to decide now? Enter your university, take the university's offerings in physics and chemistry - which you probably need...
Saturday, 6:30 PM
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PhDeezNutz
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TSny's post
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Constraint force using Lagrangian Multipliers
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In this problem, the only force acting on the bead is the time-dependent normal force from the rod. This force acts perpendicularly to...
Saturday, 4:28 AM
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PhDeezNutz
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TSny's post
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Confused about electromotive forces
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In section 7.1.1, Griffiths uses the symbol ##\mathbf f## to denote the net force per unit charge acting on the charge carriers at some...
Wednesday, 4:40 PM
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PhDeezNutz
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Vanadium 50's post
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The New California Math Framework: Another Step Backwards?
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The educationalists will tell you "a good teacher can teach any subject". It is possible to be certified a high school science teacher...
May 13, 2024
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PhDeezNutz
reacted to
ohwilleke's post
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Physics education is 60+ years out of date
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I'm skeptical of the article's claims, especially with respect to lower division physics classes. In those classes, the idea is to...
May 13, 2024
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PhDeezNutz
reacted to
Dale's post
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Physics education is 60+ years out of date
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I don’t have access to the full article. In the abstract the authors claim “Computing is central to the enterprise of physics but few...
May 13, 2024
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PhDeezNutz
reacted to
ohwilleke's post
in the thread
Is "College Algebra" really just high school "Algebra II"?
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Usually, "college algebra" is high school Algebra I and Algebra II if it is a one year course, and high school Algebra II if it is a one...
May 13, 2024
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PhDeezNutz
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russ_watters's post
in the thread
Have any famous or well known scientists come to this site?
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We used to have a sort of partnership with Michio Kaku. Mileage varies.
May 12, 2024
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PhDeezNutz
reacted to
Lnewqban's post
in the thread
Find area of the shaded part in the given diagram
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Using symmetry of the individual shaded areas respect to the diagonal lines may be a simpler solution.
May 11, 2024
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PhDeezNutz
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Hill's post
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Find area of the shaded part in the given diagram
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An alternative approach: x=x' m=m' So, the area is the triangle on the right, i.e., quarter of the square. EDIT: x-posted with #2.
May 11, 2024
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PhDeezNutz
reacted to
Vanadium 50's post
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A
"The 7 Strangest Coincidences in the Laws of Nature" (S. Hossenfelder)
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"Why are atoms neutral?" If they weren't our theories wouldn't work/be ugly." I don't think this is a very good answer. I don't think...
May 8, 2024
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PhDeezNutz
reacted to
Vanadium 50's post
in the thread
A
"The 7 Strangest Coincidences in the Laws of Nature" (S. Hossenfelder)
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Yeah. yeah. The physicists are all doing it wrong. Not the first time we heard this.
May 8, 2024
P
PhDeezNutz
reacted to
Vanadium 50's post
in the thread
A
"The 7 Strangest Coincidences in the Laws of Nature" (S. Hossenfelder)
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The electron would be bound by any positive charge. A very good question, though, is "why are atoms neutral"? That is, wny the quarks...
May 8, 2024
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PhDeezNutz
reacted to
Hornbein's post
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"The 7 Strangest Coincidences in the Laws of Nature" (S. Hossenfelder)
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"It depends on what the meaning of 'is' is." -- Bill Clinton.
May 8, 2024
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