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I know for the car to be moving at constant speed, the driving force equals the magnitude of all the opposing forces so kinetic energy is not increasing and net...
Asked on 06/19/2021 by Bloomlet
2 answerI'm interested in using normal "Reynolds wrap" type aluminum foil as a radiant barrier. What are some measures of how much light and heat this would reflect under ideal and...
Asked on 06/19/2021
1 answerI'm working in 3,1 Minkowski spacetime, representing null vectors as a product of two commuting spinors so that eg. $$p_i^{dot{alpha}alpha} = |i]^{dot{alpha}}langle i|^alpha.$$ I know that special conformal transformations...
Asked on 06/19/2021
1 answerIn normal battery resistor circuits, battery doesn't store any charge, its basically the free electrons of resistors /conducting wire that moves in a circuit. But in discharging of capacitor, charge...
Asked on 06/19/2021 by Raghav Madan
2 answerI thought up a device that uses the Oberth effect (wiki) to generate more energy than it consumes. Obviously, I made a mistake/logical error somewhere. Can you...
Asked on 06/19/2021 by odin1337
2 answerIn an attempt at calculating anisotropic London penetration depths, I have obtained equations of the form $$begin{split}-mu_0^{-1}nabla^2B_x &= Zpartial_yA_z - Tpartial_zA_x-Ypartial_zA_y,-mu_0^{-1}nabla^2B_y &= Xpartial_xA_x + Tpartial_zA_y -...
Asked on 06/19/2021 by 9cco
1 answerI don’t know much about General Theory Of Relativity but I have heard that it does not consider gravitational fields like Newtonian Mechanics. If an object were to be free...
Asked on 06/19/2021 by supransh
1 answerThe geodesic deviation equation can be written in the following form$$nabla_U^2 xi = R (U, xi) Utag{1}$$where $R$ is the Ricci tensor. It...
Asked on 06/19/2021
1 answerLet's say I am trying to find out the effect that an iron ring has on the Earth's magnetic field (approximated to a uniform field at infinity). Can I solve...
Asked on 06/19/2021
1 answerI have a simple pendulum (a point-mass attached to a rigid massless rod) and want to model friction between the rod and the axis it's attached to.My assumption is that...
Asked on 06/19/2021 by M1cha
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