Velma Passes Mort at a Speed of 0

question 21

Multiple Choice

Velma passes Mort at a speed of 0.75c. At this speed, the "time dilation factor" is 1.5. In other words, Mort observes a 1- second tick of Velma's clock to take 1.5 seconds. Suppose that they are born at the same time, and that Velma observes herself to live 30 years. According to Mort's observations, how old is he when Velma dies?

• A) 30 years
• B) 45 years
• C) 20 years
• D) 10 years
• E) 40 years

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Definitions:

Nail Bed

Epithelial tissue resting on dermis under the nail between the nail matrix and hyponychium; contributes to the formation of the nail.

Hyponychium

Thickened portion of the stratum corneum under the free edge of the nail.

Cuticle

The outer layer of living tissue, especially in plants, acting as a protective barrier. In humans and animals, it often refers to the outer layer of skin or the protective layer around the nail or hair.

Eponychium

Outgrowth of the skin that covers the proximal and lateral borders of the nail; also called cuticle.