Question 3) A truck driver uses a citizen's band, or CB, radio to communicate with other truckers. If the broadcast frequency is 27.965 MHz, calculate the wavelength of the radio wave?
Question 4)Many brands of cordless telephones use a frequency of 2.4 GHz. This same frequency is also utilized by manufacturers of wireless routers.
4a) Explain what the phrase "a frequency of 2.4 GHz" means in terms of the interaction of a radio wave
with an antenna
4B) Calculate the wavelength of the radiation associated with this signal.
Questions 5) X-rays produced in a diagnostic imaging machine have a wavelength of 8.8 nm. Determine the frequency
of this radiation.
Question 6) Diamondbacks are most sensitive to infrared radiation with a wavelength of 10 mm.
6a) Calculate the frequency of this radiation.
6b) Speculate why snakes have evolved to be sensitive to this frequency of infrared radiation.
Answers: 3
Physics, 22.06.2019 06:00, Bengynease2598
What will a positive and a negative charge do if they are separated from each other?
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Physics, 22.06.2019 19:50, fili20
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
Physics, 22.06.2019 21:30, tashaylinm02
Which sections of the heating curve illustrate this process?
Answers: 2
Physics, 23.06.2019 02:40, ayoismeisalex
When doing scientific research ,the sources used should be ?
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Question 3) A truck driver uses a citizen's band, or CB, radio to communicate with other truckers. I...
English, 26.06.2019 11:00