I have a couple homework questions that I am having trouble with...any help would be appreciated ASAP!(adsbygoogle = window.adsbygoogle || []).push({});

1.)A tuning fork generates sound waves with a frequency of 238 Hz. The waves travel in opposite directions along a hallway, are reflected by walls, and return. The hallway is 45.0 m in length, and the tuning fork is located 14.0 m from one end. What is the phase difference between the reflected waves when they meet? The speed of sound in air is 343 m/s.

2.)While Jane waits on a railroad platform, she observes two trains approaching from the same direction at equal speeds of 7.60 m/s. Both trains are blowing their whistles (which have the same frequency), and one train is some distance behind the other. After the first train passes Jane, but before the second train passes her, she hears beats having a frequency of 4.30 Hz. What is the frequency of the trains' whistles? (Assume that the speed of sound in air is 343 m/s.)

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# Homework Help: Help Pleaseeeee

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