A rigid, insulated tank fitted with a paddle wheel is filled with water, initially a two-phase liquid–vapor mixture at 20 lbf/in.2, consisting of 0.07 lb of saturated liquid and 0.07 lb of saturated vapor. The tank contents are stirred by the paddle wheel until all of the water is saturated vapor at a pressure greater than 20 lbf/in.2 Kinetic and potential energy effects are negligible. For the water, determine the (a) volume occupied, in ft3. (b) initial temperature, in °F. (c) final pressure, in lbf/in.2 (d) work, in Btu.

Acriterion for waiving informed consent is that, when appropriate, subjects are provided additional pertinent information after the study. in which of the following studies would it not be appropriate to provide subjects with information about missing elements of consent: a study in which researchers told students that they would be given a quiz after reading some study materials when the researchers did not intend to use a quiz, but were attempting to focus subjects’ attention on the material. a study in which subjects were told that they performed in the third quartile on an anagram task when in reality students were randomly assigned scores that were not related to their actual performance. a study in which subjects were assigned to study activities based on an undesirable or unflattering physical characteristic as assessed by members of the research team. a study involving decision-making games in which subjects were led to believe that they were interacting with another student in another room, but were actually interacting with a computer programmed to provide consistent responses to all subjects.

The cause and events that led to civil rights

The 13th amendment ended slavery in the united states. what would be the best reason congress decided to amend the constitution to make this practice illegal? a) congress felt all women deserved the right to vote. b) congress felt slavery was ethically and morally wrong. 'c) congress believed everyone should have us citizenship. d) congress believed abraham lincoln should have amended the constitution.