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Q&A

Posts tagged wave

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Q&A How are gravitational waves derived?

Gravitational waves can be derived from the non-linear Einstein field equations and since they are by definition waves they must obey the wave equation: $u_{tt}=c^{2}u_{xx}$ but in General Rela...

1 answer  ·  posted 10mo ago by Volpina‭  ·  last activity 10mo ago by Mithrandir24601‭

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Q&A What is the uncertainty principle and how does it relate to the measurement of particles?

I'm trying to understand the uncertainty principle and its implications for particle measurement. From what I've read, it seems that the principle states that we cannot simultaneously know the exac...

0 answers  ·  posted 12mo ago by Reinstate Monica on Stack Exchange‭

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Q&A Maxwell equations EM wave confusion

The general formula for a EM wave (solving for the E field) is: where $\varepsilon = \varepsilon _{r}+j\frac{\sigma }{\omega }$ My professor told me that the conductivity of vacuum is 0 so we...

0 answers  ·  posted 1y ago by MissMulan‭

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Q&A Is this a physics discussion or new energy? [closed]

Part 1 Say we have a round water pool, the radius is 10m, and the water depth is 2m. C is a fixed point: Fixed on the surface of water. Fixed at the center of the pool. F1 is stable forc...

2 answers  ·  posted 1y ago by HolyDamn2.0‭  ·  last activity 1y ago by Mithical‭

Question wave
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Q&A decibel level of human hearing(human-auditory-range)

Decibel level listed of solfege. Do Re Mi Fa So La Ti Do 24 27 30 32 36 40 45 80 I saw that whispering decibel level is around 40. And, normal voice level is ...

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by Olin Lathrop‭

Question decibel sound wave