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Why do fusion and fission both release energy? In general, both fusion and fission may either require or release energy Purely classical model Nucleons are bound together with the strong (and some weak) nuclear force The nuclear binding is very short range; this means that we can think of nucleons as "sticking" together due to this force Additionally the protons repel due to their electric charge As geometry means that a nucleon has
What do the symbols - Physics Stack Exchange Please have a look at this presentation on Young tableaux, I'm trying to understand the signs I mention there - what do the $\\otimes$ and $\\oplus$ symbols mean?
What are the Eigenstates and Eigenvalues? [closed] Since you are supposed to ask only one question per post, I will answer only your first question about eigenstates and eigenvalues Consider a matrix acting on vectors by matrix-vector multiplication For most vectors, when the matrix acts on them, the resulting vector points in a different direction from the original vector But for some vectors the matrix leaves the direction unchanged
When will the pringles can fall? - Physics Stack Exchange $$ \frac {mgw} {2h} < \mu mg $$ or simply $$ h > \frac {w} {2\mu} $$ And we can test it out quick I've got an empty paper cup on my desk I've also got some graph paper I can measure the width of the base of my cup in boxes and get $$ w = 9 \frac 12 \text { boxes} $$ It remains to determine the coefficient of friction
Loss in KE in terms of reduced mass and coefficient of restitution Where: μ = mAmB mA+mB μ = m A m B m A + m B, the system's reduced mass e = −V ⃗ ⋅i^ U ⃗ ⋅i^ e = − V → ⋅ i ^ U → ⋅ i ^, the coefficient of restitution between the particles U ⃗ =uA→ −uB→ U → = u A → − u B → and V ⃗ = vA→ −vB→ V → = v A → − v B → are the relative velocities of approach and separation of the particles (as seen from the frame
Why wont this electromagnet home experiment work? I'm trying one of the most basic physics home experiments: creating an electromagnet by wrapping electrically-conductive wire around a metal screw My ingredients: a metal screw I don't know the
Why do electromagnetic waves oscillate? - Physics Stack Exchange The above pretty much sums up my question, but for completeness' sake, I'm also including below references to some related threads I found: This guy asked "Do photons oscillate?" The responses explained nicely how his conception of photons was incorrect, but didn't clarify his question of why the wave forms Somebody asked a pretty similar question on reddit: "Why do photons oscillate
Why is $\\mathbf{B}$ a pseudovector? - Physics Stack Exchange I got the difference between polar vectors and axial vectors (pseudovectors) An example of pseudovector is B B But why exactly the magnetic field is a pseudovector and its components parallel to an coordinate axis do no change signs if I reverse that axis?