Nexrad Radar Uses Electromagnetic Radiation of Frequency of 2

question 59

Multiple Choice

Nexrad radar uses electromagnetic radiation of frequency of 2.7 GHz to measure the speed of cloud systems. Radio waves from a transmitter are sent outward toward a cloud system, and the waves are reflected back toward the source. If the cloud system is moving, the reflected waves will be Doppler shifted. Suppose a Nexrad system observes clouds moving toward the transmitter at 21 m/s. What is the difference between the transmitted and received frequencies of the radar in this case?

• A) 380 Hz
• B) 760 Hz
• C) 570 Hz
• D) 190 Hz

Learn the rules for citation, including what does not require citation.

Distinguish between Internet search engines and online databases.

Understand the roles and types of questions in surveys and research.

Understand the importance of using a representative sample in surveys to ensure validity and reliability of data collected.

---

Definitions:

Charitable Tax Relief

Tax deductions or exemptions granted to donors of charitable contributions, incentivizing the support of non-profit organizations.

Unenforceable

Pertaining to a contract or agreement that, due to certain defects or legal principles, cannot be legally imposed or executed.

Verbal Agreement

denotes a contract or agreement made through spoken words rather than written documents, which can be legally binding if it meets specific criteria.

Enforceable

Refers to a contract or clause that is legally binding and can be upheld in court.