Afugitive tries to hop on a freight train traveling at a constant speed of just as an empty box car passes him, the fugitive starts from rest and accelerates at to his maximum speed of which he then maintains. (a) how long does it take him to catch up to the empty box car? (b) what is the distance traveled to reach the box car?

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.