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Physics, 21.06.2019 20:00
The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?
Answers: 1
Physics, 22.06.2019 00:00
Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.
Answers: 2
Physics, 22.06.2019 00:20
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.
Answers: 1
Physics, 22.06.2019 02:30
Which feature of a heating curve indicates a change ofn state
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How far will a 600kg boat travel in 12 s if there is a constant 900N force on it and it starts from...
Mathematics, 02.11.2020 02:00
Mathematics, 02.11.2020 02:00
Mathematics, 02.11.2020 02:00
Mathematics, 02.11.2020 02:00
Mathematics, 02.11.2020 02:00
Mathematics, 02.11.2020 02:00
Mathematics, 02.11.2020 02:00