The Density of a Certain Metal Solid Is 6

question 12

Multiple Choice

The density of a certain metal solid is 6.5 × 10³ kg/m³,and its Young's modulus is 10.0 × 10¹⁰ N/m².What is the speed of sound in this metal?

• A)8.1E+1 m/s
• B)1.2E+3 m/s
• C)3.9E+3 m/s
• D)1.2E+5 m/s.
• E)8.1E+1 m/s.

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Definitions:

Density-dependent Factor

A factor whose effects on the size or growth of a population vary with the population density.

Bubonic Plague

An infectious disease caused by the bacterium Yersinia pestis, characterized by swollen lymph nodes, fever, and skin lesions.

Competitive Exclusion

A principle stating that two species competing for the same limiting resources cannot coexist at constant population values; one will always outcompete the other.

Predation

Interaction in which one organism (the predator) uses another (the prey) as a food source.