In a high-quality coaxial cable operating at 100mbps, the power drops by a factor of 10 approximately every 2.5km. if the original signal power is 0.2w (= 2 x 10-1), approximately how far will a signal be transmitted before the power is attenuated to 20μw?

What was the advantage of using transistors instead of vacuum tubes in the second-generation computers? a. computers were drastically reduced in size. b. computers no longer produced errors. c. computers became affordable. d. computers could run on electricity.