Physics, 26.07.2019 22:30 aaleeyahprice
Auniform plane wave in air with e_i(z) = a_xe_0 exp (-jbeta_0z) impinges normally on the surface at z = 0 of a highly conducting medium having constitutive parameters , mu and a . find the reflection coefficient. derive the expression for the fraction of the incident power absorbed by the conducting medium. obtain the fraction of the power absorbed at 1 (mhz) if the medium is iron.
Answers: 1
Physics, 20.06.2019 18:02
Plzz worth 10 ! which statement about energy transformations is not true? a all forms of energy can be transformed into thermal b energy is never destroyed or created during transformations c potential chemical energy always transforms into kinetic d some thermal energy is always released during a transformation
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Physics, 21.06.2019 21:10
Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.
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Physics, 21.06.2019 22:00
Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?
Answers: 3
Auniform plane wave in air with e_i(z) = a_xe_0 exp (-jbeta_0z) impinges normally on the surface at...
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