Physics, 21.01.2020 22:31 annacurry2019
Propagation in seawater. transmission of electromagnetic energy through the ocean is practically impossible at high frequencies because of the high attenuation rates encountered. for seawater, take a = 4 s-m-1, epsilon r = 81. and mu r = 1. respectively. show that seawater is a good conductor for frequencies much less than -890 mhz. for frequencies less than 100 mhz. calculate, as a function of frequency (in hz), the approximate distance over which the amplitude of the electric field is reduced by a factor of 10.
Answers: 1
Physics, 22.06.2019 14:40
Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion
Answers: 2
Physics, 22.06.2019 17:30
Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3Ă—106n/c of the field causes a spark.
Answers: 2
Physics, 23.06.2019 02:30
Asemipermeable membrane is placed between the following solutions. which solution will decrease in volume? solution a: 1.4% (m/v) starch solution b: 7.62% (m/v) starch
Answers: 2
Physics, 23.06.2019 04:00
Can anyone plz answer any of these. even if its one it will
Answers: 1
Propagation in seawater. transmission of electromagnetic energy through the ocean is practically imp...
Mathematics, 20.09.2019 01:50
History, 20.09.2019 01:50
Biology, 20.09.2019 01:50
Biology, 20.09.2019 01:50
Mathematics, 20.09.2019 01:50
English, 20.09.2019 01:50
Mathematics, 20.09.2019 02:00
Social Studies, 20.09.2019 02:00
Mathematics, 20.09.2019 02:00
Social Studies, 20.09.2019 02:00
English, 20.09.2019 02:00
Biology, 20.09.2019 02:00
English, 20.09.2019 02:00
Mathematics, 20.09.2019 02:00
Biology, 20.09.2019 02:00