Find wavelength, Phase Difference, and amplitude from min and max

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30 replies · 6K views
Just had a breakthrough moment. My textbook must be awful because I just understood what these cosine functions are actually representing from your comment and then found an equation that would help.

Amplitude of both = 2a*cos(Δψ/2)

= 2a*cos(1.1775)


Amplitude in terms of a = 0.767a

Submitted, and that was correct.

Thank you both tms and rudeman for your help! I really appreciate you guys and hope one day to give back to the community here at Physics Forums.


Thanks again!