Which of the following statements are true?
Check all that apply.
The resistance o...
Which of the following statements are true?
Check all that apply.
The resistance of a conductor is proportional to the conductivity of the material of which the conductor is composed.
Good conductors of electricity have larger conductivity values than insulators.
Semiconductors have resistivity values that are larger than those of insulators.
The resistance of a conductor is proportional to the resistivity of the material of which the conductor is composed.
A material that obeys Ohm's law reasonably well is called an ohmic conductor or a linear conductor
Answers: 2
Physics, 21.06.2019 17:00
What would the difference of spectral lines emitted by hydrogen gas in distant galaxies which is normally found at a wavelength of 21 cm on earth, be observed at 21.1 centimeters?
Answers: 2
Physics, 21.06.2019 20:30
Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.
Answers: 2
Physics, 22.06.2019 08:00
The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato
Answers: 3
Physics, 22.06.2019 11:00
Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line
Answers: 2
World Languages, 28.06.2020 21:01
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Mathematics, 28.06.2020 22:01
Mathematics, 28.06.2020 22:01
Mathematics, 28.06.2020 22:01
Mathematics, 28.06.2020 22:01
Mathematics, 28.06.2020 22:01
Mathematics, 28.06.2020 22:01
Mathematics, 28.06.2020 22:01