The Sound from the Whistle of a Truck Moving at 17.0

question 115

Multiple Choice

The sound from the whistle of a truck moving at 17.0 m/s toward a cliff reflects from the cliff and is heard by the driver of the truck.When it is parked at the side of the road,the whistle from the truck produces sound of frequency 2.267 kHz.As observed by the driver of the truck,what is the change in frequency the sound from the whistle due to the reflection? The speed of sound is 343 m/s.

• A)236 Hz
• B)228 Hz
• C)207 Hz
• D)118 Hz
• E)472 Hz

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Definitions:

Retrieval

Retrieval is the process of accessing and bringing into consciousness information stored in memory.

Stored

Refers to retaining information or materials in a particular place or medium for future use or retrieval.

Divided Attention

The ability to process multiple sources of information or engage in more than one activity at the same time.

Emotional Reactivity

The extent to which an individual responds emotionally to stimuli, including the intensity and duration of the emotional response.