Fireworks Go Off at the Same Time According to Earth

question 7

Multiple Choice

Fireworks go off at the same time according to Earth clocks in two cities, Alum and Boron, that are 300 km apart. The people in a spaceship that is flying in a straight line from Alum to Boron at 0.80c also observe the fireworks. Do they see the fireworks in the two cities simultaneously? If the people in the spaceship say the fireworks were not simultaneous in Alum and Boron, how long before or after the fireworks flashed at Alum did the fireworks flash at Boron according to their calculations? (The spaceship is directly over Alum when the fireworks flash.)

• A)Yes; 0
• B)Before; 1.0 × 10−3 s
• C)After; 1.0 × 10−3 s
• D)Before; 1.3 × 10−3 s
• E)After; 1.3 × 10−3 s

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Definitions:

Entitativity

The perception of a group as a single entity, possessing clear boundaries and a coherent identity.

Aggregate

A total or whole made up of distinct elements or individuals gathered together.

Morality

A system of values and principles concerning the distinction between right and wrong or good and bad behavior.

Formation

The process of coming into existence or the act of creating or developing something.