A Sine Wave Reaches Half of Its Peak Value At

question 45

Multiple Choice

A sine wave reaches half of its peak value at:

• A) 90°
• B) 30°
• C) 60°
• D) 45°

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Definitions:

Sarcoplasm

A type of cytoplasm found in muscle cells, rich in stored lipids, glycogen, and the proteins necessary for muscle contraction.

Intercalated Discs

Specialized structures located at the cell boundaries in cardiac muscle fibers that facilitate the coordinated contraction of the heart muscle.

Cardiac Muscle

Involuntary, striated type of muscle found in the vertebrate heart. Compare with smooth muscle and skeletal muscle.

Rigor Mortis

A temporary stiffening of muscles occurring after death as a result of chemical changes in muscle tissues.