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Part 1 Traine with A railroad train is traveling at 38.3 m/s in stilair. The frequency of the note emited by the train whistle is 250 Hz. The air temperatura i 10°C A) What frequency is heard by a passenger en a train moving in the opposite direction to the first at 11.7 ms and approaching the first? B.) What frequency is heard by a passenger on a train moving in the opposite direction to the first at 11.7 mis and receding from the first? Part 2 Trains & Meye As shown below, the red train is stationary and the green train is moving forward at a speed of 32 m/s. Between the trains is a bicyclist moving forward at 14 m/s. Each train has a whistle with a frequency of 157 Hs. The air temperature is 30°C - A) What is the frequency from the red train's whistle as heard by the bicycle? B) What is the frequency from the green train's whistle as heard by the bicyclist? Part 3 UFO A stationary person hears a 809 He signal coming from a UFO that is moving away from the person the frequency the UFO is amining is actually 935 He & the air temperature is 31°C, determine how fast the UFO is moving