Two Observers Standing Upright on Their Feet,move Horizontally Past Each

question 12

Multiple Choice

Two observers standing upright on their feet,move horizontally past each other and look at each other.The acceleration of both is zero and their relative speed is 0.500 c.Observer one looks at observer two and sees that she looks thinner than she is when she isn't moving.What does observer two see?

• A)Observer one looks wider than she is when she isn't moving.
• B)Observer one looks thinner than she is when she isn't moving.
• C)Observer one looks the same as when she isn't moving.
• D)Observer one looks like a vertical line with no width.

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Definitions:

Mitochondria

Mitochondria are membrane-bound cell organelles responsible for generating most of the chemical energy needed to power the cell's biochemical reactions.

Plasma Membrane

The lipid bilayer that encloses the cytoplasm of a cell, regulating the passage of substances in and out of the cell.

Cytoplasm

The jelly-like substance within a cell enclosed by the cell membrane, excluding the nucleus, containing organelles and the site of most cellular activities.

Lactate

A compound produced in the body during the anaerobic conversion of glucose to energy, often associated with muscle fatigue.