Physics Cell Phone Question...explain?
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Frequency-shift keying (FSK) is a form of frequency modulation in which the modulating signal shifts the output frequency between predetermined values.\n\nLook at :\nhttp://en.wikipedia.org/wiki/Frequency-shift_keying
1006189
Explain Newtons laws of motion.
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I am sorry I can not provide you with an answer to your question. However it might help you get more answers if you put this question in again but put it in the Science and Mathmatics section. Under Physics. I think there are more people willing to help you out there!
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Static means it stays in one place and mobile means it moves around i think
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Hi Mark, I will answer your question if you answer mine first.\nWhy are you asking this question, it seems like a lot of people in school are trying to take the easy way out of a physics or math problem.\nWill answer if you are not doing said above!\nCheers, Susie
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First find Vo:  Vo^2 = Rg/sin(28)  Where R = range & 8 = theta\n\nUsing your numbers, Vo = 41.523 m/s\n\nImpulse = change in momentum ----> Ft = mVo---> F = mVo/t\n\nSo, F = (.0431kg*41.523m/s)/.00438sec = 408.59 N\n\nVoila!
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please explain the question.
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Cell phones are complex, so it depends on what part you want to know about.  Since all microphones convert sound into an electrical signal, I'll skip that.  What makes cell phones special is that you can move around (even in a vehicle across your city) and, theoretically, not lose your signal.  \n\nHow is that possible?  There is not one big tower in each city that is taking all the calls from the thousands of people.  Instead, the phone company divides each city into "cells" that each have their own base station.  The base station receives the signal from your phone and transmits it back to the central office, which is connected to the regular phone network.  The area of a cell is usually only a couple square kilometers.  When you leave a cell, the base station senses that and moves control into the new cell that you're entering.  \n\nFurther, this is efficient because these high frequency signals cannot travel very far.  Thus, whatever frequency you're using on your phone can be reused just a couple of cells away.  \n\nMoreover, each cell can only handle a few dozen or so people.  That's why sometimes you'll see "network busy" when you try to make a call.  Or if you enter a new cell that is operating at capacity, the network will drop your call.  \n\nSo that's what makes cell phones special.  The rest (converting sound to electromagnetic waves, sending the waves wirelessly) is not new to cell phones.\n\nIf you have any more specific questions, please let me know.
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http://electronics.howstuffworks.com/cell-phone.htm
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When your mobile phone is switched on, your cellular network provider knows exactly where you are in the world to within a hundred metres or so. \n\nSimilar technology is used to track down lost aircraft and yachts through their radio beacons. It's not identical, because most radio beacons use satellites and cell phones use land-based aerial arrays, but the principle is the same. \n\nAt any one time, your phone is usually able to communicate with more than one of the aerial arrays provided by your phone network. They're ten or twenty kilometers apart (less in cities) and it's usually within range of at least three of them. So by comparing the signal strengths and time lags for the signals at each station, your network can triangulate your position and work out where you are. \n\nThis is true whenever your phone is switched on, whether you're using it or not, because every so often it sends out a check signal to make sure everything is working as it should. \n\nNot surprisingly, the phone network companies are shy about admitting they have this ability. But within the industry, it's seen as just one more piece of data. There is even talk of selling the data to Internet content providers so they can send information to your Internet phone based on your location, for example reviews of nearby restaurants. \n\nThe triangulation capability of cell phone network companies varies according to the age of their equipment. A few can only do it manually with a big drain on skilled manpower. But these days most companies can generate the information automatically, which makes it cheap enough to sell.\n\nCheck out link below to find out more
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the wavelength is half...\n\nvavelength and frequency are inversely proportional
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If 2 billiard balls of mass m (ma and mb) are perfectly elastic and ball A approaches from the left with velocity 2 m/s and hits ball B which has velocity 1 m/s, and is also going to the right, what's the status after the collision. \n\nA is going to the right with velocity 1 m/s and B is going to the right with velocity 2 m/s.\n\nma*2 m/s + mb*1 m/s = ma*1m/s + mb*2m/s\nmomentum is conserved
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c - cell phones\nh- house phones\n\nc*0.8 + h*0.4 = 20.8 multiply both sides by 10\nc+h= 46\n\n-----------------------\n\n8c+4h=208 divide both sides by 4\n\nc+h=46\n\n-----------------\n\n2c+h=52\n\nh=46-c\n\n---------\n\n2c+(46-c)=52\n\nc+46=52\n\nc=6\n\nh=46-c=46-6=40\n\nhe has bought 6 cell phones and 40 house phones
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Signals come to and leave your phone by means of a voltage level that is carried over copper twisted lines.  These levels used to be 90 volts, however most phones today don't require that much voltage for a ring.\n\nWhen you pick up the handset of your phone, you have "opened" a line out or in depending on whether you are answering or dialing out.  The dialing out part is you simply telling the "voltage" where to go next.\n\nModern phone systems still use the copper twisted pair method, but now those systems carry data as well for products like DSL.  The signals can also be carried via fiber optics.\n\nThe point at where the call is distributed or routed is called a switch, usually located at an exchange or a central office.\n\nFor more detailed explanations, click the link below.  It has all the information you could ever wish to know about landline and other telephone systems.
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You're in luck.  I teach physics and I know exactly how to answer this question (it's based on the work-energy principle).  It's pretty simple, really.  But it would be best if we discussed it by messenger.  Yahoo Messenger me, my ID is\nfortitudinousskeptic\n\n- Kevin
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Ask your phone company, I aint a mind reader
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Sorry I'm not good in physics.\n\nAre you from the Philippines? For sure you are because you know Sandara Park.