A Spaceship Approaches Earth with a Speed $0.50$ C a Passenger in the Spaceship Measures His Heartbeat as Passenger

question 13

Multiple Choice

A spaceship approaches Earth with a speed $0.50$ c. A passenger in the spaceship measures his heartbeat as 70 beats per minute. What is his heartbeat rate according to an observer that is at rest relative to Earth?

• A) 75 beats per minute
• B) 69 beats per minute
• C) 65 beats per minute
• D) 73 beats per minute
• E) 61 beats per minute

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Definitions:

Hundreds of Studies

A phrase indicating a large body of research work or experiments focusing on a particular topic or field.

Meta-Analysis

A statistical technique for combining the results of multiple studies to arrive at a comprehensive conclusion.

Experiments

Controlled procedures carried out to discover, demonstrate, or test a hypothesis, involving manipulation of variables to observe effects.

Combining

The action or process of merging two or more elements together.