The Air Columns in Two Identical Pipes Vibrate at Frequencies

question 37

Multiple Choice

The air columns in two identical pipes vibrate at frequencies of 150 Hz.The percentage of change needed in the length of one of the pipes to produce 3 beats per second is

• A)1%
• B)2%
• C)3%
• D)4%
• E)5%

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Definitions:

Proximal Processes

Reciprocal interactions between a person and her immediate external environment, including other people, the physical environment, or informational sources such as books or movies. In Bronfenbrenner’s biological model, all developments are a function of these processes.

Bronfenbrenner's Model

A theoretical model proposing that human development is influenced by various types of environmental systems, from immediate family to broader societal contexts.

Immediate Environment

denotes the direct surroundings or conditions in which a person lives or operates, impacting their behavior and development.

Incremental Change

Gradual alterations or developments over time that accumulate to produce significant overall change.