What quickly forms on a cold glass on a hot day.

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

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 rate of change in a objects position?