In a Pipe That Is Open at One End and Closed

question 76

Multiple Choice

In a pipe that is open at one end and closed at the other and that has a fundamental frequency of 256 Hz,which of the following frequencies cannot be produced?

• A)768 Hz
• B)1.28 kHz
• C)5.12 kHz
• D)19.7 kHz
• E)all of these can be produced

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Definitions:

Random Variation

The inherent unpredictability in the outcomes of a process, often analyzed in statistical contexts to understand or model data.

Cyclical Effect

A pattern of fluctuations in a time series that corresponds to cycles in the broader economy, often related to business or economic conditions lasting more than a year.

Exponential Smoothing

A time series forecasting method for univariate data that applies smoothing factors to make forecasts.

Smoothing Constant

A parameter used in exponential smoothing forecasting methods to control the rate at which older observations are dampened.