Group 2 and group 3 stars represent which stages of development? describe these groups in terms of their relative age, size, brightness, and temperature. - me! message me for the file?

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road

In which of the following can you not find plasma