The Wave Speed in a Wire Stretched with a Tension

question 31

Multiple Choice

The wave speed in a wire stretched with a tension of 250 N is 240 m/s and the radius of the wire is 0.50mm.What is the density of the wire?

• A)3.94 * 10³ kg/m³
• B)4.01 * 10³ kg/m³
• C)2.75 * 10³ kg/m³
• D)5.53 * 10³ kg/m³
• E)8.60 * 10³ kg/m³

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Definitions:

AV Node

The atrioventricular node, a part of the heart's electrical system that acts as a gatekeeper, slowing the electrical current before it passes from the atria to the ventricles.

SA Node

The sinoatrial node, also known as the heart's natural pacemaker, is a cluster of cells situated in the right atrium of the heart that regulates the heart's rhythm by generating electrical impulses.

Bundle of His

A collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the atrioventricular node to the ventricles of the heart.

Electrocardiogram

A test that measures the electrical activity of the heart to detect heart problems and monitor heart health.