How did mcculloch v. maryland affect the separation of powers in the united states? it established the power of the federal government. it decided that the federal government cannot tax states. it established the power of state governments. it allowed state governments to overrule the federal government.

On this map which states would the tropic of cancer run through

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.

Regarding interpersonal attraction, which of the following statements is false? most people find it easier to initiate an interaction with another person rather than reciprocate to someone else’s overtures. proximity promotes attraction by increasing the frequency of contact between people. reciprocity may be the most important factor influencing the development of friendships. in choosing a mate we tend to marry someone who is like us in almost every way, a pattern called homogamy.