An Ambulance Is Generating a Siren Sound at a Frequency

question 20

Multiple Choice

An ambulance is generating a siren sound at a frequency of 2,000 Hz. The speed of sound is 345.0 m/s. The observer and the ambulance are traveling toward each other at a velocity of 24.00 m/s. If the ambulance is stationary, what is the frequency of the siren perceived by the observer?

• A) 2,640 Hz
• B) 2,559 Hz
• C) 2,324 Hz
• D) 2,139 Hz
• E) 2,003 Hz

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Definitions:

Externalizing Disorder

Externalizing disorder refers to a group of disorders characterized by outward-directed behaviors, such as aggression, hyperactivity, defiance, or conduct problems, often observed in children and adolescents.

ADHD

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by a pattern of inattention, hyperactivity, and impulsivity that interferes with functioning or development.

Risk Factors

Elements or conditions that increase the likelihood of a negative outcome, such as disease, injury, or other health issues.

Parent Training Programs

Interventions designed to teach parents effective strategies for managing their children's behavior problems, improving family dynamics and child outcomes.