Physics, 31.12.2019 01:31, heartprague
Our local public radio station (kjzz) broadcasts at a frequency of 91.5 mhz.
(a) what is the wavelength of the radio waves emitted by the kjzz broadcast antenna? give your answer in meters.
m
(b) what is the wavelength of the radio waves emitted by the antenna of an am station broadcasting at a frequency of 1060 khz?
Answers: 2
Physics, 21.06.2019 17:20, lamwil9432
When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.
Answers: 1
Physics, 22.06.2019 12:20, zenaidazurita1p6bs1d
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?
Answers: 2
Physics, 22.06.2019 20:00, luceridiaaz
What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?
Answers: 1
Physics, 23.06.2019 00:30, tressasill
Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?
Answers: 1
Our local public radio station (kjzz) broadcasts at a frequency of 91.5 mhz.
(a) what is...
(a) what is...
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