A String That Is 2

question 23

Multiple Choice

A string that is 2.0 meters long is fixed at both ends and tightened until the wave speed is 18 m/s. What is the frequency of the standing wave shown in the figure?

• A) 110 Hz
• B) 54 Hz
• C) 27 Hz
• D) 81 Hz

Identify key figures and their contributions to the rights and conditions of black soldiers during and after World War I.

Understand the racial dynamics and discrimination faced by black women who offered their services as nurses during World War I.

Analyze the varied experiences of black soldiers in European societies during World War I.

Evaluate the role and impact of the black press on public opinion and racial justice during World War I.

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Definitions:

Myelination

Myelination is the process by which nerve fibers are coated with a protective myelin sheath, enhancing the speed and efficiency of electrical signal transmission in the nervous system.

Frontal Cortex Maturation

Frontal cortex maturation is the developmental process in which the frontal lobe of the brain matures, significantly affecting decision making, reasoning, and impulse control, typically completing in early adulthood.

Axons

Long, slender projections of nerve cells that transmit electrical impulses away from the neuron's body to other neurons, muscles, or glands.

Hemisphere

One half of a spherical or roughly spherical body, typically referring to the divisions of the Earth or the brain.