A Group of Students Wants to Measure the Speed of Sound

question 117

Multiple Choice

A group of students wants to measure the speed of sound. They have a computer program with which they can produce sound and flash a light while producing it. A couple of students stand at a distance of 800 meters, and they measure the time gap between seeing the light and hearing the sound by using a chronometer. They measured the time as 2.34 s. So, at what is the speed of the sound wave?

• A)349.4 m/s
• B)341.9 m/s
• C)319.2 m/s
• D)345 m/s

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Definitions:

Signal-Recognition Particle RNA

See signal-recognition particle (SRP).

Ribosome-mRNA-Polypeptide Complex

A molecular assembly that includes a ribosome, messenger RNA (mRNA), and the newly forming polypeptide chain during protein synthesis.

Rough ER

A network of membranous tubules within a cell, studded with ribosomes, involved in the synthesis and transport of proteins.

Nonsense Mutation

A genetic mutation that results in a premature stop codon, leading to an incomplete and usually nonfunctional protein.