subject
Physics, 24.12.2019 04:31 thanerose

Asatellite in geostationary orbit is used to transmit data via electromagnetic radiation. the satellite is at a height of 35,000 km above the surface of the earth, and we assume it has an isotropic power output of 1 kw (although, in practice, satellite antennas transmit signals that are less powerful but more directional).imagine that the satellite described in the problem introduction is used to transmit television signals. you have a satellite tv reciever consisting of a circular dish of radius r which focuses the electromagnetic energy incident from the satellite onto a receiver which has a surface area of 5 cm^2.how large does the radius r of the dish have to be to achieve an electric field vector amplitude of 0.1 mv/m at the receiver?

ansver
Answers: 2

Another question on Physics

question
Physics, 23.06.2019 01:00
The receptor cells that convert light energy into neural signals are called
Answers: 2
question
Physics, 23.06.2019 08:00
There is no gravity in outer space . explain why this statement is true or false
Answers: 1
question
Physics, 23.06.2019 08:20
What kind of air would be characteristic of a continental polar air mass? o a cold, dryob. warm, humido c. warm, dryo d. cold, wet
Answers: 1
question
Physics, 23.06.2019 10:00
Plz explain what friction, corollas, and a low pressure gradient does to an air parcel. what is 1+1=
Answers: 1
You know the right answer?
Asatellite in geostationary orbit is used to transmit data via electromagnetic radiation. the satell...
Questions
question
Mathematics, 03.10.2021 09:50
Questions on the website: 13722363