Ahertzian dipole antenna in free space has l =0.02x. the following are in far-field: (a) what value of current i is necessary to radiate total power of 60 mw? a. (b) what is the ratio of the magnetic field intensity, h at the polar angles 0 = 10 degrees and 80 degrees (c) what fraction of the total radiated power is contained in the region 0 < 60 degrees (d) what is the radiation resistance, rrad?
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Physics, 22.06.2019 18:00
Gabby calls her cousin who lives in a different state and tells her to turn her radio to channel 98.7 so they can listen to their favorite song that is playing. her cousin turns her radio to 98.7, but does not hear the same song gabby hears. which most likely explains why?
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Physics, 22.06.2019 18:00
Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?
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Physics, 22.06.2019 22:30
Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.
Answers: 1
Physics, 23.06.2019 00:30
Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?
Answers: 1
Ahertzian dipole antenna in free space has l =0.02x. the following are in far-field: (a) what value...
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