"a 78-year-old woman has a mean arterial pressure of 120 mm hg and a heart rate of 60 beats/min. she has a stroke volume of 50 ml, cardiac output of 3000 ml/min, and a right atrial pressure of 0 mm hg. what is the total peripheral resistance (in mm hg/ml/min) in this woman

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to

What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%