Knowing what you do about the circumstances surrounding sara’s speech, which of the following options would not provide sara’s argument with validity nor remain relevant to her argument? a. a positive survey of senior citizens regarding their experience working with sara b. a positive survey of teachers and parents regarding their experience working with sara c. a positive survey of politicians regarding their experience working with sara d. a positive survey of high school students regarding their experience working with sara

Difference between series and parallel circuits

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

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.