A Wave Moving in the Positive X Direction Has an Amplitude

question 111

Multiple Choice

A wave moving in the positive x direction has an amplitude of 0.4 m, a frequency of 0.25 Hz, and a wavelength of 24 m. An equation, in which the units are SI, that might describe this wave is

• A) yx, t) = 0.2 sin 2t/4 + x/24).
• B) yx, t) = 0.4 sin 2t/4 - x/24).
• C) yx, t) = 0.4 sin 8t - x/6).
• D) yx, t) = 0.2 sin 0.5t/4 - x/24).
• E) yx, t) = 0.4 sin 2t/4 + x/6).

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Definitions:

Urine

A liquid by-product of metabolism in the bodies of many animals, including humans, expelled through the urethra.

Starvation

A severe deficiency in caloric energy, nutrient, and vitamin intake, leading to extreme suffering or even death.

Extrinsicorporeal

Pertaining to or situated outside the body.

Root

A component of a plant usually situated under the ground, it functions to soak up water and nutrients from the soil.