What can you use in your writing to evoke a better sense of mood?

The following force measurements were taken during actual testing of the lever pictured. what is the ama of this lever?

Who is responsible for maintaining a balanced state budget

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?