Physics, 12.07.2019 00:10 sarahjohnson5621
If you want to make a strong battery, should you pair two metals with high electron affinities, low electron affinities, or a mix? explain your answer.
Answers: 1
Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
Physics, 22.06.2019 10:20
Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
Answers: 1
Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
Physics, 23.06.2019 12:00
Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?
Answers: 1
If you want to make a strong battery, should you pair two metals with high electron affinities, low...
Chemistry, 10.11.2020 21:50
Mathematics, 10.11.2020 21:50
Geography, 10.11.2020 22:00
History, 10.11.2020 22:00
Biology, 10.11.2020 22:00
Mathematics, 10.11.2020 22:00
Mathematics, 10.11.2020 22:00
Mathematics, 10.11.2020 22:00
Mathematics, 10.11.2020 22:00