A Steel Piano String Is Attached,under Tension,at Each End to Secure

question 8

Multiple Choice

A steel piano string is attached,under tension,at each end to secure posts.When gently struck,a faint note can be detected coming from the string.The string is then cooled by blowing cold air over it and then is struck again.How does the note now detected compare to the previous one.

• A)It is the same since the posts don't move.
• B)It is at a higher frequency than the original one.
• C)It is at a lower frequency than the original one.
• D)More than one answer is correct.

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Project Analysis

The process of examining the feasibility and potential return on investment of a project before committing resources.

Opportunity Cost

Opportunity cost represents the benefits an individual, investor, or business misses out on when choosing one alternative over another.

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