A horseshoe magnet is pulling on a metal screw, is it pushing or pulling the horseshoe magnet?

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

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

Am i correct on these two physics questions?