When a person uses an iron to remove the wrinkles from a shirt, why does heat travel from the iron to the shirt?

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

True or false graphs must include scales that increase by the same amount

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.