Physics Questions, Problems & Solutions : TransWikia.com ~ Page 260

The formal solution of the time-dependent Schrödinger equation

Consider the time-dependent Schrödinger equation (or some equation in Schrödinger form) written down as$$tag 1 i partial_{0} Psi ~=~ hat{ H}~ Psi .$$Usually, one...

Asked on 06/15/2021

3 answer

What is the effect of a flat mirror's surface flatness as a function of beam wavelength

Mirror surface flatness is specified as a multiple of $lambda$, where $lambda$ is the wavelength at which the surface flatness was tested, and is typically $sim 632...

Asked on 06/15/2021 by cpc333

1 answer

What is the time difference between clocks on Earth and a star, from the view of a spaceship?

A textbook I’m using gives an example regarding relativity that I don’t understand. The exact calculations are not that important, I’m more after the conceptual understanding. It is explicitly stated...

Asked on 06/15/2021 by Cdizzle

2 answer

Which kinectic energy in an unreferenced system?

I wake up after an indeterminate period of hibernation. I'm in the dark deep space. No reference at all. I don't ear the hum of the engines. I can't know...

Asked on 06/15/2021 by Ripi2

2 answer

When the external resistor increases in temperature, why is the calculated value for internal resistance higher?

Say we had a circuit with a cell (with internal resistance)and an external resistor of $10 Omega$ as shown: ...

Asked on 06/14/2021 by user225790

4 answer

Interaction of a permanent magnet's field with an induced magnet

When you place a material capable of being magnetised into another magnetic field, it will become an induced magnet. (For example placing a nail in the vicinity of a bar...

Asked on 06/14/2021

0 answer

Does there exist finite dimensional irreducible rep. of Poincare group where translations act nontrivially?

I read several textbooks of QFT and find that there are two ways to classify the particles or fields. The first one is to study the irreducible representation of Lorentz...

Asked on 06/14/2021

3 answer

The first and second form of Euler-(Lagrange) equation with explicit time dependence

I have learned the first and second form of Euler-(Lagrange) equation with no explicit time dependence (the time dependence only implicit on the function to be solved, say $yleft(tright)$),...

Asked on 06/14/2021

2 answer

Particle Charge

Simple question that I've never heard a satisfactory answer for from a physics teacher: what exactly is a 'charge' of a particle? Most teachers I've heard from define charge in...

Asked on 06/14/2021 by J.D.Edward

2 answer

Why did I get less magnetic strength with more windings on a coil?

I wound two coils (A & B) using 27 AWG winding wire. Each coil was wound on a ¾ inch thick x 3 inch steel rod. Coil A had 7000...

Asked on 06/14/2021

2 answer

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