The Short Lifetime of Muons Created in the Upper Atmosphere

question 70

Multiple Choice

The short lifetime of muons created in the upper atmosphere of the Earth would not allow them to reach the surface of the Earth unless their lifetime increased by time dilation.From the reference system of the muons,the muons can reach the surface of the Earth because

• A)time dilation increases their velocity.
• B)time dilation increases their energy.
• C)length contraction decreases the distance to the Earth.
• D)the relativistic speed of the Earth toward them is added to their velocity.

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Definitions:

Fibroblasts Migration

The movement of fibroblasts, a type of cell that synthesizes the extracellular matrix and collagen, towards the site of tissue injury for healing.

Inflammatory Response

The body's defense mechanism against infection or injury, resulting in redness, heat, swelling, and pain.

Scab Formation

The process of forming a scab, where blood clots and dries on a wound to protect it from infection and facilitate healing.

Atherosclerosis

A condition characterized by the hardening and narrowing of the arteries due to the buildup of plaque on artery walls, which can lead to cardiovascular diseases.