Two waveforms of the same frequency are moving to the right.The power PA transmitted by wave A is equal to 
Definitions:
Higher Education
Post-secondary education provided by universities and colleges that leads to an academic degree or vocational qualification.
Selfishness
The act of putting one's own needs and desires above the needs of others.
Self-Interest
The motivation of individuals to pursue their own welfare, benefits, or advantages, often used as a basic assumption in economics about human behavior.
Command Economy
An economic system where the government, rather than the free market, determines what goods should be produced, how much should be produced, and the price at which goods are offered for sale.
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