Derive the following equations. :a=u-v by t​

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Photons with the highest energy have the longest period

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up