List questions from physics

Published on 21 Jun 2018 - 11:00

33

Views

maximum value of $|\text{Re}[E e^{i \phi}]|$ for a complex 3-vector E

Published on 23 Jun 2018 - 0:21

319

Views

How did they get rid of the “j” in this equation of a low pass filter?

Published on 23 Jun 2018 - 3:00

449

Views

Cauchy problem for diffusion equation and condition $x^2$ if $x\in [0,1]$

Published on 25 Mar 2026 - 0:41

568

Views

Wave problem $u_{tt}=u_{xx}-u_t, 0\le x\le 2\pi$ with $u(x,0)=\phi(x)$, $u_t(x,0)=\psi(x)$ and $u(0,t)=u(2\pi,t)=0$

Published on 25 Mar 2026 - 4:43

68

Views

Differential Equation and Matlab

Published on 27 Mar 2026 - 5:34

317

Views

GR Coordinate and proper time, null geodesic

Published on 25 Mar 2026 - 1:32

1k

Views

Functional derivative in QFT

Published on 22 Mar 2026 - 2:19

40

Views

Square-well interaction between two particles in 3D

Published on 27 Jun 2018 - 14:27

106

Views

How to simplify the time-ordered exponents?

Published on 26 Mar 2026 - 17:44

823

Views

Solve Green function of an annulus to calculate the shape of a clamped elastic sheet

Published on 25 Mar 2026 - 8:12

569

Views

Bouncing ball with friction.

Published on 27 Mar 2026 - 0:06

115

Views

Sufficient proof that the angular momentum has a constant norm.

Published on 01 Jul 2018 - 3:25

303

Views

How to solve for a vector in a cross product?

Published on 25 Mar 2026 - 13:53

6.8k

Views

Correct formula to find the range of a projectile (given angle (possibly negative), initial velocity, initial elevation, and g)

Published on 25 Mar 2026 - 7:06

List Question

Finding the ratio $\dfrac{\Delta E_X}{\Delta E_Y}$

maximum value of $|\text{Re}[E e^{i \phi}]|$ for a complex 3-vector E

How did they get rid of the “j” in this equation of a low pass filter?

Cauchy problem for diffusion equation and condition $x^2$ if $x\in [0,1]$

Wave problem $u_{tt}=u_{xx}-u_t, 0\le x\le 2\pi$ with $u(x,0)=\phi(x)$, $u_t(x,0)=\psi(x)$ and $u(0,t)=u(2\pi,t)=0$

Differential Equation and Matlab

GR Coordinate and proper time, null geodesic

Functional derivative in QFT

Square-well interaction between two particles in 3D

How to simplify the time-ordered exponents?

Solve Green function of an annulus to calculate the shape of a clamped elastic sheet

Bouncing ball with friction.

Sufficient proof that the angular momentum has a constant norm.

How to solve for a vector in a cross product?

Correct formula to find the range of a projectile (given angle (possibly negative), initial velocity, initial elevation, and g)

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