A Stationary Source S Generates Circular Outgoing Waves on a Lake.The

question 65

Multiple Choice

A stationary source S generates circular outgoing waves on a lake.The wave speed is 5.0 m/s and the crest-to-crest distance is 2.0 m.A person in a motor boat heads directly toward S at 3.0 m/s.To this person, the frequency of these waves is:

• A)1.0 Hz
• B)1.5 Hz
• C)2.0 Hz
• D)4.0 Hz
• E)8.0 Hz

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Definitions:

Reverse Transcriptase

An enzyme that synthesizes DNA from an RNA template, essential in the replication of retroviruses.

Single-stranded DNA

A structure of DNA consisting of only one strand as opposed to the normal double-stranded DNA, often used in various biotechnological processes.

Recombinant DNA

DNA molecules formed by laboratory methods of genetic recombination to bring together genetic material from multiple sources, creating sequences that would not otherwise be found in biological organisms.

DNA Ligase

A catalyst that aids in the linking of DNA strands by promoting the creation of a phosphodiester bond.