Physics, 04.09.2020 19:01 seannalove4148
You are measuring the volume of a chemical beaker how would u take the measurment?
a. lift the beaker to eye level
b. you look down at the liquid above
c. use a ruler to measure
d. you squat to be eye level to the beaker
Answers: 3
Physics, 22.06.2019 03:30
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 14:00
Una carga puntual de 3 x 10-6 c se coloca a 12 cm de una segunda carga puntual de - 1,5 x 10-6 c. calcular la magnitud fuerza eléctrica entre las cargas
Answers: 2
Physics, 23.06.2019 06:30
What is a possible explanation for a set of facts that can be tested by further investigations called
Answers: 3
Physics, 23.06.2019 08:10
Ais a multilevel way of grouping items based on common properties among them. a. memory b. conceptual hierarchy c. schema d. semantic network
Answers: 1
You are measuring the volume of a chemical beaker how would u take the measurment?
a. lift the beak...
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