subject
Physics, 26.03.2020 21:33 rubixcube4786434

Radar detectors use radio waves to measure the speed of moving vehicles. radar detectors have a wavelength of 1.8 X 10^12 meters. what is the frequency of waves from a radar detector?


Radar detectors use radio waves to measure the speed of moving vehicles. radar detectors have a wave

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 00:30
Part f - example: finding two forces (part i) two dimensional dynamics often involves solving for two unknown quantities in two separate equations describing the total force. the block in (figure 1) has a mass m=10kg and is being pulled by a force f on a table with coefficient of static friction îľs=0.3. four forces act on it: the applied force f (directed î¸=30â above the horizontal). the force of gravity fg=mg (directly down, where g=9.8m/s2). the normal force n (directly up). the force of static friction fs (directly left, opposing any potential motion). if we want to find the size of the force necessary to just barely overcome static friction (in which case fs=îľsn), we use the condition that the sum of the forces in both directions must be 0. using some basic trigonometry, we can write this condition out for the forces in both the horizontal and vertical directions, respectively, as: fcosî¸â’îľsn=0 fsinî¸+nâ’mg=0 in order to find the magnitude of force f, we have to solve a system of two equations with both f and the normal force n unknown. use the methods we have learned to find an expression for f in terms of m, g, î¸, and îľs (no n).
Answers: 2
question
Physics, 22.06.2019 09:30
True or false graphs must include scales that increase by the same amount
Answers: 1
question
Physics, 22.06.2019 14:40
What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
Answers: 2
question
Physics, 22.06.2019 15:30
Match each scenario to the form of energy it represents
Answers: 2
You know the right answer?
Radar detectors use radio waves to measure the speed of moving vehicles. radar detectors have a wave...
Questions
question
Mathematics, 24.10.2019 03:50
question
History, 24.10.2019 03:50
Questions on the website: 13722367