It has been known for many years that ceramics can conduct electricity. in 2008, scientists found a ceramic material that can conduct electricity with no resistance at 133 k. what is the most important significance of this 2008 finding?
this is a lower temperature than onnes’s experiment, and it will allow for a broader use of superconductors.
this is a higher temperature than onnes’s experiment, and it will allow for a broader use of superconductors. (this is the answer)
materials that can conduct electricity with no resistance are new and can allow for new materials to be made.
ceramic materials have been known to be able to conduct electricity prior to year 2008.

Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.

Could someone me find the answer to this problem.

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults