Please answer those questions accurately. This is the whole homework. Just make that the answers are accurate

7.9 What is dispersion? 7.10 List the three forms of optical fiber, and give the general properties of each. 7.11 What light sources and sensors are used with optical fibers? 7.12 What is the chief disadvantage of optical fiber as opposed to copper wiring? 7.13 What is the approximate conical angle that can be used with infrared technology? 7.14 Can laser communication be used from a moving vehicle? Explain. 7.15 Why might low-frequency electromagnetic radiation be used for communications? Explain 16 What are the two broad categories of wireless communications? .17 List the three types of communications satellites, and give the characteristics of each .18 If messages are sent from Europe to the United States using a GEO satellite, how long will it take for a message to be sent and a reply to be received? .19 How many GEO satellites are needed to reach all populated areas on the earth? 20 What is propagation delay? 21 What is the relationship between bandwidth, signal levels, and data rate? 22 If two signal levels are used, what is the data rate that can be sent over a coaxial cable 23 If a system has an average power level of 100, an average noise level of 33.33, and a 24 If a system has an input power level 5 If a telephone system can be created with a signal-to-noise ratio of 40 dB and an analog has an analog bandwidth of 6.2 MHz? bandwidth of 100 MHz, what is the effective limit on channel capacity? the difference when expressed in dB? bandwidth of 3000 Hz, how many bits per second could be transmitted? of 9000, and an output power level of 3000, what is