The Displacement from Equilibrium of an Oscillating Weight Suspended by a Spring

question 9

Multiple Choice

The displacement from equilibrium of an oscillating weight suspended by a spring is given by $y ( t ) = \frac { 1 } { 4 } \cos ( 6 t )$ , where y is the displacement (in feet) and t is the time (in seconds) .Find the displacements when $t = 5$ .(Round your answers to two decimal places.)

• A) \(y ( 5 ) \approx 0.04\) foot
• B) \(y ( 5 ) \approx 0.14\) foot
• C) \(y ( 5 ) \approx 0.44\) foot
• D) \(y ( 5 ) \approx 0.34\) foot
• E) \(y ( 5 ) \approx 0.24\) foot

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Definitions:

Power

The probability that a statistical test will correctly reject a false null hypothesis, or the test's sensitivity to detecting an effect.

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A procedure used to determine whether the observed data significantly deviates from a hypothesis.

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A branch of statistics that infers properties about a population based on a sample of data drawn from that population.

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