Two Point Sources Emit Sound Waves of 1 $\pi$ Radians?
A)x = 0, 1

question 7

Multiple Choice

Two point sources emit sound waves of 1.0-m wavelength. The sources, 2.0 m apart, as shown below, emit waves which are in phase with each other at the instant of emission. Where, along the line between the sources, are the waves out of phase with each other by $\pi$ radians?

• A)x = 0, 1.0 m, 2.0 m
• B)x = 0.50 m, 1.5 m
• C)x = 0.50 m, 1.0 m, 1.5 m
• D)x = 0.75 m, 1.25 m
• E)x = 0.25 m, 0.75 m, 1.25 m, 1.75 m

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Definitions:

Absorption Costing

A method of costing that takes into account all expenses of production, including direct materials and labor, and both kinds of manufacturing overheads, variable and fixed, in determining a product's cost.

Operating Income

Income generated from a company's primary business operations, excluding deductions of interest and taxes.

Year 2

Typically refers to the second year of a given period, plan, or study, often used in financial and academic contexts.

Absorption Costing

A method of accounting that incorporates both variable and fixed manufacturing expenses into the pricing of a product.