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the binary exponential back-off algorithm is defined by IEE802thus:" The delay is an integral multiple of slot time. The numberof slot times to delay before the nth retransmission attempt ischosen as a uniformly distributed random integer r in the range0<r<2^k, where k=min(n,10)." slot time is ,roughly, twice theround-trip propagation delay. Assume that two stations always havea frame to send. After a collision, what is the mean number of retransmission attempts before on station successfully transmits?
A 500kVA ,7200-240V, 60Hz, transformer with 2.2% impedance was severly damaged as a result of a dead short across secondary terminals. Determine a) The short-circuit current;
The voltage and current in the Laplace domain for a certain system is given by V (s) = 1/12 1/s^2 +3, I(s) = s/s^2+3. Is this system best described as resistive, capacitive, or inductive?
You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.70 s, and the velocity of the car decreases to + 4.71 m/s. The car's deceleration has a magnitude of 3.41 m/s2 during this time. What is the car's displace..
If the amplitude of the incident wave voltage at theload is 100V, determine the amplitude of the total voltage at theload, the distance from the load to the first voltage minimum and the amplitude of the voltage at this minimum.
You are planning to buy a $250,000 house and will take out a mortgage for 80% of the homes value. The term of your mortgage is 15 years and the interest rate is 4%, compounded monthly.
A current filament carrying current of 15 A in z direction lies along the entire z-axis.Find H in cartesian coordinates at point (√20,0,4)and(2,-4,-4)
Let X be a random variable uniformly distributed on [-2,2]. Define the random variable y=g(x), where g(x) { x+1 : x >= 0 { x-1 : x
The total charge that has accumulated on the positive plate of a capacitor varies with time. The charge follows q=At^2 for the first 4s. a) Find the value of current at t=2,6,9,12,16 s. b) Sketch the current i(t) as a function of time
A client has given you an equivalent AC circuit of a sheet of glass. They need to find out how to break the glass with high frequency sound energy. The equivalent circuit contains an AC voltage source which replicates the input energy from the sou..
A magnetic material fills the half-space z 0) is free space. The per-meability of free space is mu_0 and the permeability of the magnetic material is 5 mu_0. The magnetic flux density in the magnetic material is B2= 10 ax+ 15 ay-20 az
Find the maximum acceptable propagation loss for the system, given that the transmit power at the base station is 30W, base station feeder losses are 15 dB, the base station antenna gain is 6 dB, the mobile antenna gain is 0 dBi and the mobile fee..
The accompanying schematics each show two inductors with coupling but with different dot markings. For each of the two systems, determine the equivalent inductance of the system at terminals 1-1' by combining inductances.
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