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Interplanetary spaceships can be sent to distant parts of the solar system by means of the "gravitational slingshot" method. The spaceship makes a brief close encounter with a massive planet and is flung away in a different direction of travel. Assuming the approach and post-encounter directions of the spaceship, as seen from the planet, are opposite to each other, describe how the spaceship may increase its overall velocity relative to the Sun.
Freedom House
An organization that conducts research and advocacy on democracy, political freedom, and human rights around the world.
Ideological Struggle
A conflict between different sets of ideas, beliefs, or values.
Office Of War Information
A U.S. government agency created during World War II to consolidate government information services and promote propaganda efforts.
New Deal
A series of programs, public work projects, financial reforms, and regulations enacted by President Franklin D. Roosevelt in the 1930s to alleviate the effects of the Great Depression.
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