An Ambulance Is Generating a Siren Sound at a Frequency

question 9

Multiple Choice

An ambulance is generating a siren sound at a frequency of 2,400 Hz. The speed of sound is 345.0 m/s. If the ambulance is traveling at a velocity of 24.00 m/s toward the stationary observer, then what is the frequency of the siren perceived by the observer?

• A) 2,579 Hz
• B) 2,540 Hz
• C) 2,525 Hz
• D) 2,500 Hz
• E) 2,480 Hz

Recognize factors important in designing questionnaires to minimize errors.

Understand the concept of sampling and various sampling techniques.

Comprehend the impact of sample size on the accuracy of sample estimates.

Distinguish between sampling and nonsampling errors and methods to minimize them.

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Definitions:

Tracert

A Windows command line network troubleshooting command that displays the path a data packet takes through a network, thus allowing you to see where a fault occurs in larger networks. Compare with traceroute, used in macOS and Linux.

Latency

In networking, the amount of delay experienced as a packet travels from source to destination.

DHCP Server

Software configured on a network server or router that issues IP addresses from its pool of numbers upon request to a network device.

Ipconfig

A command used from a command prompt in Windows to view the current IP configuration settings.