Two Waves Are Described By: Y1 = 6 Cos 180t

question 15

Multiple Choice

Two waves are described by: y1 = 6 cos 180t and y2 = 6 cos 186t, (both in metres) .What effective frequency does the resultant vibration have at a point?

• A)92 Hz
• B)183 Hz
• C)6 Hz
• D)3 Hz
• E)366 Hz

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Definitions:

Facets

Smooth, flat surfaces that form joints with other bones or structures, often referring to parts of the vertebral bones.

Ribs

Curved bones that form the rib cage, providing protection to the thoracic cavity and support for the upper body.

Test Statistic

A value calculated from sample data that is used in a hypothesis test to make a decision about the null hypothesis.

Sample Data

Data collected from a subset of a population, used to make inferences or predictions about the larger group.