Concept explainers
On an audio compact disc (CD), digital bits of information are encoded sequentially along a spiral path. Each bit occupies about
where the 2 is for the 2 loudspeakers (the 2 stereo channels). Note that N0is less than the number N of bits actually read per second by a CD player. The excess number of bits (= N - No)is needed for encoding and error-correction. What percentage of the bits on a CD are dedicated to encoding and error- correction?
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Physics: Principles with Applications
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- Started at the same time from a very flat surface and 8 mm apart, (two snails are vertically climbing up a wall at uniform speeds. If one of the snails is climbing at the rate 2 mms. while the other is 3 mm/s faster than the first, determine how fast they are separating from each other after 5 seconds they started A. 45/17 mm/s B. 2mm/s C. 34/6 D.67/39arrow_forwardShow that the equation v=√T/π does the appropriate units for velocity.arrow_forwardAn object's velocity as a function of time in one dimension is given by the expression; v(t) = 2.71t + 7.88 where are constants have proper SI Units. What is the object's velocity at t = 4.19 s?arrow_forward
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