PHY $220$ Final: May $2024$

Initial:

ints$)$

allel to a highway with a constant speed of $20\mathrm{.}0\frac{m}{s}.$ A car is traveling in the same direction d of $40\mathrm{.}0\frac{m}{s}.$ The car horn sounds at a frequency of $510$ Hz $,$ and the train whistle sounds When the car is behind the train, what frequency does an occupant of the car observe fc er the car passes and is in front of the train, what frequency does a train passenger obse