As Measured from the Earth,a Spacecraft Is Moving at Speed

question 58

Multiple Choice

As measured from the Earth,a spacecraft is moving at speed 0.80c when it releases a probe at speed 0.60c relative to the spacecraft in a forward direction.What would be the speed of the probe as measured from the Earth?

• A)0.70c
• B)0.81c
• C)c
• D)0.95c

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Definitions:

James-Lange theory

A theory of emotion that suggests that emotions occur as a result of physiological reactions to events.

Emotions

Complex psychological states that involve a subjective experience, a physiological response, and a behavioral or expressive response.

Physical changes

Physical changes are alterations in the form, appearance, or structure of matter that do not change its identity or chemical composition.

Subjective Standard

A criterion for judgment based on personal feelings, tastes, or opinions rather than objective facts or evidence.