Three Identical Blocks Move Either on a Horizontal Surface, Up

question 17

Multiple Choice

Three identical blocks move either on a horizontal surface, up a plane, or down a plane, as shown below. They all start with the same speed and continue to move until brought to rest by friction. Rank the three situations according to the mechanical energy dissipated by friction, least to greatest.

• A) The same for all cases
• B) 1, 2, 3
• C) 1, then 2 and 3 tie
• D) 3, 2, 1
• E) 2, 1, 3

Understand the role of the judicial system in shaping public policy and addressing social issues.

Assess the impact of political decisions and leadership on American domestic and foreign policy during the 1960s.

Compare and contrast different movements for social and political change in America.

Understand the purpose and impact of acreage allotment programs on agricultural supply.

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Definitions:

WAVES

A division of the U.S. Navy during World War II, consisting of women volunteers who served in non-combat roles.

Noncommissioned Officers

Military personnel who have earned a position of authority by promotion through the ranks rather than by commission; they serve as essential links between the enlisted personnel and the commissioned officers.

Second World War

A global conflict that lasted from 1939 to 1945, involving most of the world's nations, including all of the great powers, eventually forming two opposing military alliances: the Allies and the Axis.

Double V Campaign

A World War II-era movement by African Americans advocating for victory over fascism abroad and racial discrimination at home in the United States.