Physics, 21.08.2019 04:10, brittany7436
Signals from radio sources statistically look like noise". this is because we receive the signals from many, many electrons that are emitting sine waves of arbitrary amplitudes, frequencies, and phases. 1. explain in your own words why we receive the signal from many electrons (rather than just a single electron, or a few electrons) and why they all emit signals of different amplitudes, phases and frequencies. 2. what does "statistically looks like noise" mean? what properties of noise does this signal have? 3. demonstrate (in python) that such a signal will have noise-like properties
Answers: 2
Physics, 22.06.2019 03:30, natu2072
Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n
Answers: 1
Physics, 22.06.2019 04:00, zoepatterson1p0lij1
When an object is heated it contracts. a. true b. false
Answers: 2
Physics, 22.06.2019 11:00, flores1717
Positrons are spontaneously emitted from the nuclei of
Answers: 1
Physics, 22.06.2019 11:30, ramirezzairap2u4lh
Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)
Answers: 3
Signals from radio sources statistically look like noise". this is because we receive the signals fr...
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