Nov 25, 2007 · The discussion centers on finding the derivative of the volume of a cone, represented by the formula V = (1/3)πr²h. Participants clarify that to compute the derivative, one must identify the …

Jan 12, 2026 · The Hopf fibration of the 3-sphere consists of fibers that are circles, which do not intersect and collectively form the 3-sphere. The 3-sphere can be represented as the locus of …

Oct 25, 2025 · Hi All While going through my book on QFT for mathematicians (What Is a Quantum Field Theory? by Michel Talagrand) I came across the following: 'Quantum Mechanics, in its standard …

Aug 27, 2011 · The discussion clarifies that 'k' in the equation 1/2mv² = kQq/r represents the Coulomb constant, valued at approximately 8.988 x 10^9 Nm²/C². It is defined as k = 1/4πε₀, where ε₀ is the …

Apr 2, 2015 · Hello, The discussion revolves around the COMSOL Student Copy, which provides a free academic license for students. Participants emphasize the importance of adhering to forum rules, …

Jan 12, 2026 · Gauss' Law doesn't say that - it says The integral is important because Gauss is making a statement about the flux through a closed surface, not just some random non-closed surface. …

Jan 23, 2023 · I recently learned of a multiplication method of signed numbers using 2's complement. Here is the answer. What I want to know is how does this multiplication work? I understand that two's …

Nov 30, 2007 · This discussion centers on whether asymptotes should be classified as critical points in the context of the function y = x sqrt (4-x^2). The critical points identified are √2 and -√2, while the …

Oct 9, 2015 · The wave number k = 2π/λ . But is defined as radians per unit distance. What is the correlation here between the wavelength and radians ?

Oct 25, 2014 · Azimuthal symmetry in physics refers to a system's invariance under rotation around a specific axis, typically the z-axis. This concept is defined mathematically by the condition m=0, …