Two speakers, A and B, produce
identical sound waves. A listener is
3.20 m from speaker A. The listener
finds the lowest frequency that
creates destructive interference at
his location is 72.4 Hz. How far
away is he from speaker B?
(Hint: v = A f = 343 m/s)
(Unit = m)

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

answer: the correct answer is   air pressure at the top of mount everest is higher than at the bottom of the grand canyon.

hope this : )

explanation:

grav potential energy

does anyone know or what?