An Umbrella Tends to Move Upwards on a Windy Day

question 8

Multiple Choice

An umbrella tends to move upwards on a windy day principally because

• A)trapped air under the umbrella, warms, and rises.
• B)buoyancy increases with increasing wind speed.
• C)air pressure is reduced over the curved top surface.
• D)all of the above

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Definitions:

Suffrage

The right to vote in political elections, often highlighted in historical contexts around movements to extend this right to various groups.

Linked With Freedom

Suggestively associated with the concept or state of being free, possibly pertaining to movements, ideologies, or historical events advocating for liberty.

Revolution

A fundamental and relatively quick change in political power or organizational structures that takes place when the population revolts against existing authorities.

Revolutionary War

A conflict from 1775 to 1783 in which the Thirteen American Colonies won independence from Great Britain, becoming the United States of America.