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A constriction in a pipe reduces its diameter from 4.0 cm to 2.0 cm.Where the pipe is narrow the water speed is 8.0 m/s.Where it is wide the water speed is:
Empire
A group of countries or territories under the control of a single ruler or government, often having a vast geographical span.
Eastern Europe
Eastern Europe refers to the region encompassing the eastern part of the European continent, characterized by its distinct cultural, historical, and political attributes.
Tariff Barriers
Taxes imposed on imported goods to protect domestic industries from foreign competition and to raise government revenue.
Totalitarian
A political system in which the state holds total authority over the society and seeks to control all aspects of public and private life.
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