A Spaceship Approaches the Earth with a Speed 0

question 34

Multiple Choice

A spaceship approaches the earth with a speed 0.50c.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 the earth?

• A) 69 beats per minute
• B) 73 beats per minute
• C) 65 beats per minute
• D) 61 beats per minute
• E) 80 beats per minute

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Definitions:

Security Needs

The need to protect oneself from physical and economic harm.

Minimum-wage Laws

Regulations established by government mandating the lowest hourly rate that can be paid to an employee by employers.

Micro-management

An excessive control or attention on minor details, often in a managerial context, limiting the autonomy of employees.