Two loudspeakers placed 6.0 m apart are driven in phase by an audio oscillator, whose frequency range is 1595 hz to 2158 hz. a point p is located 4.7 m from one loudspeaker and 3.6 m from the other. the speed of sound is 344 m/s. the frequency produced by the oscillator, for which destructive interference occurs at point p, in si units, is closest to:

Which statements identify what astronomers currently know and think will happen with our universe? check all that apply. the big bang produced dark energy, which accounts for some of the energy needed to expand the universe. the vastness of space may contain a type of matter known as "dark matter." the universe is currently shrinking at a rapid rate. the universe is currently expanding at an accelerating rate. the big bang theory explains all the energy and matter discovered by scientists.