The Wave Equation Is Written Down in an Exam As \frac

question 47

Multiple Choice

The wave equation is written down in an exam as
$\frac { d ^ { 2 } y } { d x ^ { 2 } } = v ^ { 2 } \frac { d ^ { 2 } y } { d t ^ { 2 } }$ From dimensional considerations we see that

• A)v² should be replaced by \(\frac { T } { \mu }\) .
• B)v² should be replaced by \(\sqrt { \frac { T } { \mu } }\) .
• C)v² should be replaced by v.
• D)v² should be replaced by \(\frac { 1 } { v }\) .
• E)v² should be replaced by \(\frac { 1 } { v ^ { 2 } }\) .

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Definitions:

Significance Level

A threshold in statistical hypothesis testing, often denoted by alpha, that determines the probability of rejecting a true null hypothesis.

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Significance Level

The threshold below which a p-value indicates that the observed data are sufficiently unlikely under the null hypothesis, leading to a rejection of the null hypothesis.

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