You Are in a Spaceship Moving Past Earth at Nearly

question 10

Multiple Choice

You are in a spaceship moving past Earth at nearly lightspeed and you observe Mort, who is on Earth. You measure his mass, pulse rate, and size. How are they different from the values measured by Mort himself?

• A) Mass has increased, pulse rate has speeded up, and size is reduced along the direction of motion.
• B) Mass has decreased, pulse rate has slowed down, and size is reduced along the direction of motion.
• C) Mass has decreased, pulse rate has speeded up, and size is reduced along the direction of motion.
• D) They are unchanged, i.e., they are normal.
• E) Mass has increased, pulse rate has slowed down, and size is reduced along the direction of motion.

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Definitions:

ATP

Adenosine triphosphate, a molecule that carries energy within cells, providing the necessary power for most cellular activities.

Proteins

Large, complex molecules essential for the structure, function, and regulation of the body's cells, tissues, and organs.

Carbohydrates

Organic compounds, found in foods and living tissues, including sugars, starch, and cellulose, which are an important energy source.

Skeletal Muscle Mass

The amount of muscle attached to the skeleton, responsible for movement and strength in the body.