BigFourEx

mgqaydinan of the University of the Philippines’ Institute of Mathematics has provided a sample final exam, featuring the typical structure and scoping all topics discussed in the subject. Questions

This worksheet is an unlimited-attempt review material that features channel effects. Below, there is a combination of multiple-choice , true-or-false , and cloze items. This page is interactive, and no data will be uploaded when answering this page. Questions Consider a linear time invariant channel with amplitude response S ( f ) = 0.2 1.64 − 1.6 c o s ( 2 π f ) . Suppose that the channel input has the form x ( n ) = 3.7 c o s ⁡ ( 2 π 0.02 n ) for all n from −∞ to +∞. The channel output can be written as y ( n ) = A c o s ⁡ ( 2 π 0.04 n + ϕ ) where − π ≤ ϕ ≤ π . What is the numerical value of A? Please provide your answer in at least 3 significant figures. Which of the following statements is/are true: Lossy compression reduces the effects of bit errors. Channel cod...

Questions Markscheme

Questions Markscheme

Questions Markscheme

Questions Markscheme

This worksheet is an unlimited-attempt review material that features channel effects. Below, there is a combination of multiple-choice , true-or-false , and cloze items. Due to the interactive nature of this page, this worksheet can’t be printed out directly; no data will be uploaded by filling in this worksheet. Questions An LTI system models the following effects: attenuation, delay, offset, and blurring of transitions offset, and blurring of transitions delay, and offset delay, and blurring of transitions Suppose we transmit binary bits over a given LTI channel using two different communication protocols. Protocol A uses a bit time of 5 microseconds, and protocol B uses a bit time of 20 microseconds. If all other aspects of the protocols are the same, then Protocol B will have less ISI. If a shorter bit time was used, bit rate increases decreases ...

Physics 71 offered a take-home worksheet covering topics 33 to 36 — from mechanical stress to fluid flow. It includes problem-solving exercises and has a total of 40 marks; though, 10 marks are optional. Questions Earth’s angular momentum. (5 points) What is the total angular momentum of the Earth considering its rotation on its own axis and its revolution around the Sun assuming circular orbit r = 1.5 × 10 11 [m]? Its mass is R = 5.96 × 10 24 [kg] and radius R = 6.38 × 10 6 [m]. Take the Earth as a solid sphere. Disk banggaan. (5 points) Two identical disks I = 1 2 M R 2 are rotating in the same direction about their axes with angular speeds 6.0 [rad/s] and 7.0 [rad/s]. Disk 1 is dropped from an arbitrary height and collides with disk 2. If the two disks stick together and rotates about axis O after collision, what is the angular speed of the two-disk system? Construction site. (5 points) A 15000 [N] crane pi...