An Object Is Released from Rest When It Is a Height

question 33

Multiple Choice

An object is released from rest when it is a height h above the surface of a planet of mass M and radius R.What is the speed of the object just before striking the surface of the planet? Neglect any air resistance.Let h = 4.0*10⁶ m,R = 5.0 *10⁶ m,and M = 4.0 *10²⁴ kg.

• A)7.8 km/s
• B)3.5 km/s
• C)5.4 km/s
• D)6.9 km/s
• E)4.8 km/s

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Definitions:

Visuospatial Tasks

Activities that require an individual to use visualization and spatial reasoning to solve problems or complete tasks.

Information-Processing Model

A cognitive approach that compares the human mind to a computer, emphasizing how information is input, processed, and output.

Hindsight Bias

The tendency to believe, after learning an outcome, that one would have foreseen it, often referred to as the "I knew it all along" phenomenon.

Sequential Lineup Procedure

A method used in eyewitness identification where suspects are presented one at a time instead of all together.