A Siren Emitting Sound of Frequency 1000 Hz Approaches a Stationary

question 106

Multiple Choice

A siren emitting sound of frequency 1000 Hz approaches a stationary observer at one-half the speed of sound.The observer hears a frequency of

• A)1000 Hz
• B)2000 Hz.
• C)500 Hz.
• D)1500 Hz.
• E)none of the above.

---

Definitions:

Perform Slowly

Description applied to a process or system operating with noticeable delay or lower than expected speed.

Additional RAM

Extra random access memory installed in a computer system to increase its performance by allowing more data to be stored and accessed quickly.

Hardware Maintenance

The routine servicing and repairs of physical computer and electronic equipment to ensure their proper functioning.

Power Source

Refers to the origin of power that supplies energy for electrical devices, which can range from batteries to electrical outlets.