Laurenercsp6fpli stop deleting my answers

Plss anybody know how to do this? ? i need the answers from a through d

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?

What is the temperature in degrees celsius of a substance with a tempature of 49k