Two speakers, 7.0 m apart, are in phase and emit a pure tone of wavelength 2.4 m. The closest loud spot (completely constructive interference) to either speaker along a line segment connecting the speakers is:. Answer m away.

If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?