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An object weighs 40n in air , weighs 20n when submerged jn water and 30n submerged in a liquid of unknown density .what is the density of the liquid?

The two-factor theory of emotion was proposed by

1.3.3 quiz: primary and secondary sourcesquestion 4 of 102 pointsa secondary source is reliable and credible if the person who created thesource is an expert on the topic, is educated and respected in the field ofstudy, and: