A Spaceship from Another Galaxy Passes Over the Solar System $\gamma$

question 3

Multiple Choice

A spaceship from another galaxy passes over the solar system directly above a radial line from the sun to the Earth.(We measure that distance to be 1.5 *10¹¹ m. ) On Earth,the spaceship is observed to be traveling at a speed of 0.80 c,for which $\gamma$ = 5/3.As measured on Earth it takes the spaceship 625 seconds to travel from the sun to Earth.When a scientist in the spaceship measures the Earth-sun distance and the time it takes her to travel that distance,she finds the results are respectively

• A)9.0 *10¹⁰ m;375 s.
• B)9.0 *10¹⁰ m;625 s.
• C)1.5 * 10¹¹ m;625 s.
• D)2.5 * 10¹¹ m;625 s.
• E)2.5 *10¹¹ m;1042 s.

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Definitions:

Relaxed

A state of being free from tension, anxiety, or stress, often characterized by physical calm and mental tranquility.

Ambitious

Having a strong desire for success, achievement, or distinction, often accompanied by willingness to strive for its attainment.

Daily Hassles

Everyday minor events that cause stress, such as traffic jams, long lines, or technical difficulties.

Lymphocytes

A type of white blood cell that is part of the immune system, playing a vital role in defending the body against infection and disease.