When a Heavy Metal Block Is Supported by a Cylindrical $F / \sqrt { 2 }$

question 36

Multiple Choice

When a heavy metal block is supported by a cylindrical vertical post of radius R, it exerts a force F on the post. If the diameter of the post is increased to 2R , what force does the block now exert on the post?

• A) F/2
• B) \(F / \sqrt { 2 }\)
• C) 2F
• D) F/4
• E) F

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Definitions:

Motivated Forgetting

A psychological phenomenon whereby individuals unconsciously block memories of traumatic or disturbing events or information.

Source Amnesia

Faulty memory for how, when, or where information was learned or imagined. (Also called source misattribution.) Source amnesia, along with the misinformation effect, is at the heart of many false memories.

Misinformation Effect

The phenomenon where a person's recall of episodic memories becomes less accurate due to post-event information.

Retroactive Interference

A memory phenomenon where newly learned information interferes with the recall of previously learned information.