Physics, 10.09.2019 19:30, jessicad8776
Public television station kqed in san francisco broadcasts a sinusoidal radio signal at a power of 316 kw. assume that the wave spreads out uniformly into a hemisphere above the ground. a) at a home 5.50km away from the antenna, what average pressure does this wave exert on a totally reflecting surface? answer in pa unitsb)at a home 5.50km away from the antenna, what are the amplitudes of the electric and magnetic fields of the wave? answer in n/c, tc) at a home 5.50km away from the antenna, what is the average density of the energy this wave carries? answer in j/m^3d) for the energy density in part (c), what percentage is due to the electric field? e)for the energy density in part (c), what percentage is due to the magnetic field?
Answers: 3
Physics, 22.06.2019 11:00, velazquezemmy45
What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.
Answers: 1
Physics, 23.06.2019 02:10, Lujfl
Which best describes the weak nuclear force? it maintains attraction between the m ecules in liquids. it attracts the nucleus of one atom to the nucleus of another atom. it pulls all matter in the universe together it keeps particles that make up protons and neutrons together
Answers: 1
Physics, 23.06.2019 10:10, aeshaalhemri
Human population projections are subject to change due to fluctuations in global fertility and mortality rates
Answers: 1
Public television station kqed in san francisco broadcasts a sinusoidal radio signal at a power of 3...
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