Physics, 19.09.2019 23:20 hannahmjohnson0443
One thing a person can do to reduce his or her water footprint is to use less water every day. if each american was to reduce his or her daily water use by 2 m3 (528 gallons), how would you calculate the new annual water footprint for a typical american? there may be more than one correct answer.
Answers: 3
Physics, 21.06.2019 15:30, andrew8228
Acurve connects the data points that are plotted. (physical science chapter 11 motion)
Answers: 1
Physics, 22.06.2019 03:30, zahradawkins2007
As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.
Answers: 3
Physics, 22.06.2019 07:00, lilpeepxliltracy
Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?
Answers: 1
One thing a person can do to reduce his or her water footprint is to use less water every day. if ea...