Two speakers, 5.0 m apart, are in phase and emit a pure tone of wavelength 4.0 m. 39. What is the closest distance to either speaker, along a line connecting the speakers, where a loud spot (completely constructive interference) is found

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive