A physics teacher walks 4 meters East, 2 meters South, 4 meters West, and finally 2 meters North. What is her distance and what is her displacement.

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?

Which atomic model was proposed as a result of j. j. thomson’s work?

Which governments provide garbage collection services to homes and businesses