Physics, 19.07.2019 04:30, masonbartolo8184
Why are noise considerations important in optical fiber communications? 3. describe the principle of "population inversion".
Answers: 1
Physics, 22.06.2019 19:00, lindseybug
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
Answers: 1
Physics, 22.06.2019 22:00, jerry7792
1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light
Answers: 3
Physics, 22.06.2019 23:00, genyjoannerubiera
Why does gravity have a lesser than grater effect on higher altitudes?
Answers: 2
Physics, 23.06.2019 03:50, ginger87771
Acar driving 22.7 m/s on flat ground drives off a 42.3 m high cliff. how much time does it take to reach the ground?
Answers: 1
Why are noise considerations important in optical fiber communications? 3. describe the principle o...
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