Physics Questions, Problems & Solutions : TransWikia.com ~ Page 534

When an approaching magnet induces current in a coil, if the current is moving toward the magnet then is that the north pole of the magnet?

I my students lesson:we coiled wire around a paper tube;connected the upper end so that if electrons flow through it a voltmeter reads negative;connected the lower end...

Asked on 02/25/2021 by Evanston212

1 answer

Original Derivations of Euler Equations or Navier-Stokes Equations

I've seen the derivations for both viscous and inviscid momentum balance in fluid flow in courses, but I'm curious as to where the original derivation for the equations now referred...

Asked on 02/25/2021 by Eli Berkowitz

2 answer

Can a photons wavelength be independent of its associated temporal wavefunction?

Typically a traveling photon is described as being in a superposition of frequency modes $hat{E} = int g(omega) a^dagger_omega domega + h.c. $ where often the $g(omega)$ is...

Asked on 02/25/2021

1 answer

Difference between low and high amplitude waves

What would be the difference between radio waves produced by a walkie talkie with a range of 10 meters (lets say) versus a radio wave antenna placed at the top...

Asked on 02/25/2021 by Lord Random

0 answer

What do force extension graphs for springs show?

Say for example a 4N force is applied to a spring. The spring's restorative force will increase from 0N to 4N until the spring is in equilibrium. Throughout this time...

Asked on 02/25/2021

3 answer

Equation to define the change in orbital radius given a situation where angular momentum is conserved but energy is lost

I am considering the motion of two satellites around a Protostar. I need an equation to define the change in orbital radius given a situation where angular momentum is conserved...

Asked on 02/25/2021

0 answer

Stability of circular orbit in attractive inverse cube central force field

Considering a motion of a body under an attractive inverse cube central force, $textbf{F}(textbf{r}) = -frac{k}{r^3} hspace{1mm}hat{textbf{r}}$ with $k>0$. Is it possible for a body to move in...

Asked on 02/25/2021 by Peter Hofer

4 answer

Not enough current to supply load

Are there cases where a power supply can offer xV, which is required by a device, but be unable to supply enough current? For example, a voltage divider not only...

Asked on 02/25/2021

1 answer

Does the energy density of space create cause gravitational attraction beyond what would be computed from an object's mass alone?

I am starting from the assumption that the gravitational warping of spacetime increases its volume, so a spherical region of space with a fixed surface area would be able to...

Asked on 02/25/2021

1 answer

Why is the South Pole Telescope located exactly at the South Pole?

I read that there is less atmospheric interference for the telescope at the South Pole because the atmosphere is thin and there is less water vapor in the...

Asked on 02/25/2021 by macco

4 answer

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