Components: an Airplane Undergoes the Following Displacements: First, It Flies

question 44

Multiple Choice

Components: An airplane undergoes the following displacements: First, it flies 66 km in a direction 30° east of north. Next, it flies 49 km due south. Finally, it flies 100 km 30° north of west. Using vector components, determine how far the airplane ends up from its starting point.

• A) 79 km
• B) 81 km
• C) 82 km
• D) 78 km
• E) 76 km

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Definitions:

Organizing Research

The process of planning, executing, and managing research activities to systematically investigate a topic or problem.

Test-retest Reliability

The degree to which the same test or assessment yields consistent results over time when taken by the same individual under the same conditions.

External Validity

The extent to which the results of a study can be generalized to other situations and to other people.

Interrater Reliability

A measure of how consistently different observers or raters assess, score, or judge a particular trait, behavior, or outcome.