In Their Common Rest Frame, Two Stars Are 90

question 7

Multiple Choice

In their common rest frame, two stars are 90.0 light-years (ly) apart. If they are 12.0 ly apart as measured by the navigator in a spaceship traveling between them, how fast is the spaceship moving? Express your answer in terms of c.

• A) 0.991c
• B) 0.986c
• C) 0.980c
• D) 0.972c

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Passive Role

Involves being inactive or not participating actively in a situation or process.

Lawn Maintenance Technician

A professional responsible for the care and upkeep of lawns and garden landscapes, including tasks like mowing, fertilizing, and controlling pests.

Physical Education Teacher

An educator who specializes in teaching physical fitness, sports, and wellness practices in schools or sports facilities.

Secretary

An individual employed to handle correspondence, keep files, and perform clerical duties.