Measurements Suggest That Light First Arrived at Earth from the Cassiopeia

question 193

Multiple Choice

Measurements suggest that light first arrived at Earth from the Cassiopeia A supernova about 300 years ago and that this supernova is about 10,000 ly distant from Earth. When did the explosion actually occur?

• A) It is not possible to determine when the explosion occurred from the information given.
• B) 9700 years ago, or about 7700 B.C.
• C) 10,300 years ago, or about 8300 B.C.
• D) 300 years ago, or about A.D. 1700.

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Definitions:

Identification

The process of recognizing or establishing the identity of a person or thing, often through specific marks or documents.

Compensation

Remuneration or payment given for services rendered or to cover the loss or damage that has been suffered.

Caregiver Role Strain

The stress and burden felt by caregivers due to the demands of caring for another person.

Activity Intolerance

A condition where an individual has inadequate physiological or psychological energy to endure or complete required or desired activities.