A Platinum Wire That Is 1

question 30

Multiple Choice

A platinum wire that is 1.20 m long has a radius of 0.500 mm and is fixed at both ends.In its third harmonic it vibrates at 512 Hz.The density of platinum is 21.4 × 10³ kg/m³.What is the tension in the wire?

• A) 4.00 kN
• B) 2.00 kN
• C) 2.82 kN
• D) 1.41 kN
• E) 1.00 kN

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Definitions:

Endocrine Glands

Glands in the human body that release hormones directly into the blood to regulate various bodily functions.

Hormones

Chemical messengers secreted by glands in the body that regulate physiology and behavior, including growth, metabolism, and reproductive processes.

Bloodstream

The flowing blood within the circulatory system of the body, carrying oxygen, nutrients, and waste products to and from the cells.

Synaptic Gaps

The tiny space between neurons across which neurotransmitters travel to transmit signals from one neuron to another.