Explain the meaning behind the phrase separate but equal

Which technological breakthrough of the 1950s revolutionized the way that americans kept up with news and world events? a) radio b) internet c) television d) motion pictures

Humphreys collecting data for the tearoom trade study under the pretense that he was a lookout is an example of a violation of the principle of: a. justice.b. beneficence.c. respect for persons.

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