In a musical instrument, sound waves build up by constructive interference until they are loud enough to hear. this concept is known as

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 tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?