Answer:
Speed of sound wave v=νλ=2000×0.35=700 m/s
Distance d=1.5 km=1500 m
Time t=vd=7001500≈2 s
Answer:
Theory
Explanation:
Theory
In science, including psychology, a theory can be said to be ia set of generally agreed upon ideas, beliefs or organized principles that give an explanation to, solve problems and guide analysis. A theory provides a framework for explaining observations. The explanation can be used to make predictions about the future.
Evolutionary theory, atomic theory, gravity and quantum theory, are examples of this sort of over-arching theory
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Letter C is the correct answer.
Pericle was a great dmocratic leader in Athens who played an important role during the Persian and Peloponnesian wars. He believed that is was paramount that people of Athens took pride in their city by participating in government. Therefore, he started to pay people to serve in public offices and on juries. He, also, encouraged them to participate in government and to write their own constitution.
Answer:
Communism is a political and economic ideology that positions itself in opposition to liberal democracy and capitalism, advocating instead for a classless system in which the means of production are owned communally and private property is nonexistent or severely curtailed
Explanation:
