Physics, 13.01.2020 04:31, aaliyah1860
How do police use the principle of the doppler effect?
to transmit fingerprints from one precinct to the next
to measure how much pollution is coming from your car
to measure the speed of cars on the highway
police don't use this, only the weather
Answers: 2
Physics, 22.06.2019 00:20, thedocgalloway
You have been consulted by the mobile phone company hookup about a new augmented reality product called âbrowsâ. they want to develop an alternative to google glasses, which, you recall, is a proposed new product which plans to superimpose a whole range of wireless google services over the userâs ordinary vision of the world. these appear in little circles and ovals, and let you phone people, take photographs, navigate across cities and inside buildings, find shops and update your social media. brows would do this too, but not be limited to special google services. the user would wear a small cylinder-shaped device designed to fit on top of their existing eyewear (glasses or sunglasses). it would project a reversed image onto the inside of the lenses, the reflection of which would be in focus for the user. instead of voice control, the user would control the device by eye and neck movements, which the device would track. the device would connect via bluetooth to the userâs phone, which would supply most of the computing power and wireless connectivity. hookup also wants to know what existing services would be most in demand, and which would not work well with brows. using your knowledge of augmented reality, wearable technology and interface design, is the project feasible? if not, why not? if feasible, how could the product need to be modified for a better experience?
Answers: 2
Physics, 22.06.2019 01:30, kadinmorgan
In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00Äâ106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using Ä”0=8.85Äâ10Ăąâ12c2/(nĂąâčâŠm2) .
Answers: 2
Physics, 22.06.2019 05:00, caguil00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesnât, as machines are inefficient. d) no, it doesnât, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 11:10, alexisbarry7495
An isotope undergoes radioactive decay by emitting radiation that has a â1 charge. what other characteristic does the radiation have?
Answers: 3
How do police use the principle of the doppler effect?
to transmit fingerprints from on...
to transmit fingerprints from on...
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