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/sci/ - Science & Math

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3869931 No.3869931 [Reply] [Original]

Is it possible to calculate how much energy a wave has?

>> No.3869936

>>3869931

Too many dynamic factors are involved for any calculation of use.

>> No.3869950

LIKE A MATTER WAVE? JUST SOLVE THE TIME INDEPENDENT SCHRODINGER EQUATION

>> No.3869951
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3869951

If you define what that means sure.
For example, if the wave is goverend by a (simpler) differential equation that you can reconstruct a lagrangian density, compute the hamiltonian. it's value for your wave equation solution is an associated energy.

>> No.3869960

Wave of what?

Yes.

>> No.3869968

Let's say it was a mechanical wave like sound.

>> No.3869982

Obviously... why not?

Light is a wave. If you have a black body then you can absorb all of it and measure *exactly* the energy the light had by measuring the change in heat energy of your black body.

>> No.3870018

E=mc2

>> No.3870213

>>3869982
E=hf