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Suppose We Discovered Radio Signals Coming from the Star Alpha

question 23

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Suppose we discovered radio signals coming from the star Alpha Centauri, whose distance is 4.4 light-years from us, and we sent a crew in a spacecraft to visit it. If the spacecraft used revolutionary technology allowing it to travel at a speed of 0.5 c, how long would it take the spacecraft to get to Alpha Centauri, and how long a time would the astronauts say passed during the trip? (Ignore the time it would take to accelerate the spacecraft to reach a velocity of 0.5
c.)


Definitions:

Bodily Fluids

Liquids originating from inside the human body, including blood, saliva, semen, and sweat, responsible for various functions and processes.

Exposure Incident

An event where an individual comes into contact with potentially infectious bodily fluids or hazardous materials.

HBV

Hepatitis B Virus, a virus that causes infection and inflammation of the liver.

Medical Evaluation

A comprehensive assessment of a patient's health status based on clinical history, physical examination, and diagnostic tests to establish a diagnosis.

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