The Graph Above, Which We Discussed in Class, Shows the Relativity

question 72

Multiple Choice

The graph above, which we discussed in class, shows the relativity of time, space, and mass [you will need to figure out which graph goes with which effect]. As measured by Velma, her spaceship has a mass of 10,000 kg and a length of 100 m. She moves at 80% of lightspeed relative to Mort. According to Mort's measurements, the mass and the length of her spaceship are

• A) 6000 kg and 60 m.
• B) 16,500 kg and 60 m.
• C) 6000 kg and 165 m.
• D) 16,500 kg and 165 m.
• E) This question cannot be answered without knowing which observer is really at rest.

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Definitions:

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A system that uses a mechanical linkage and force to secure a stationary vehicle by inhibiting wheel movement.

DOT 4 Hydraulic

A type of hydraulic fluid specified by the Department of Transportation (DOT) for use in brake and clutch systems, known for its high boiling point.

Atmospheric Air

The natural air found in the Earth's atmosphere, composed of nitrogen, oxygen, and trace amounts of other gases, at conditions prevailing at any specific location and time.

Hygroscopic

The ability of a substance to absorb moisture from the air.