How do scientists determine motion of objects in the universe?

A. heliocentric theory

B. big bang theory

C. geocentric theory

D. Doppler effect

Are people more motivated to change from positive or negative experiences, like slavery, womens rights, and any other historical movements/moments? i need more factual information than opinions.

Which member of the president's cabinet is most likely to negotiate a treaty with a foreign country? secretary of the interior secretary of the treasury secretary of defense secretary of state

Peggy feels sorry for smokers who have lung cancer because she believes they were duped by tobacco companies to develop a deadly addiction and are therefore not responsible for their disease. when asked to donate money to support lung cancer research, peggy gives generously. peggy’s prosocial behavior can best be explained by the arousal: cost-reward model. the negative state relief model. a norm of equity. attributions of responsibility.