One of your authors was once involved in a research study where a newly developed pain drug was being tested. all participants completed a series of tasks intended to represent various types of somatic pain (e. g., a sharp, fast pain, a dull ache, and were asked to report how much pain they experienced during each task. the pain series was completed both during an initial visit to the lab, and during a second visit about a week later. prior to completing the tasks during the second visit, participants received either the new pain drug or a placebo. what primary ethical guidelines apply to this experiment? would any other guidelines apply if the study participants were made up of a group of patients actively receiving treatment for a pain disorder?
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Physics, 21.06.2019 23:00
The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?
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Physics, 22.06.2019 14:20
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)
Answers: 3
Physics, 22.06.2019 15:30
This is the number of complete movements of a wave per second.
Answers: 1
One of your authors was once involved in a research study where a newly developed pain drug was bein...
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