The purpose of the metallic shield on coaxial cable includes all of the following except:
A) limit the radiation or bleeding of the signal out of the cable
B) carry the signal
C) act as an electrical return path
D) offer protection against interference such as electromagnetic forces and cross talk
B
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Orthogonal signal generation for two users.
The following worksheet specifies a pair of 10 sample orthogonal data signals sA sub "i" and sB sub "i" with amplitude specified in A2. TDMA signals are computed in C6:D15, FDMA in F6:G15 with frequencies defined in F2 and G2 in units of periods per n sub "x" (=10), and CDMA in I6:J15. The orthogonality condition is computed in L17. The signal energy is computed in Row 17
a. What is the formula in C8?
b. What is the formula in C17?
c. What is the formula in F8?
d. What is the formula in F17?
e. What is the formula in G8?
f. What is the formula in I8?
g. What is the formula in I17?
h. What is the formula in L17?
An insulated compressor uses 25 hp of power to compress air from 14.7 psia to 80 psia. The air enters at 75oF, and the volumetric flow rate at the inlet is 2.50 ft3/s. Determine the temperature of the air exiting the compressor.
Given: P1 = 14.7 psia; T1 = 75oF; P2 = 80 psia; W?= ?25 hp=?17.67 Btu/s; V?= 2.50 ft3/s; Air (Take State 1 as the inlet, State 2 as the outlet.) Assume: Q?=0 (insulated). For a compressor, assume steady-state, steady-flow, single-inlet, single-outlet flow, with ?KE = ?PE = 0
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What will be an ideal response?
A fluid coupling consists of all of the following EXCEPT a:
A. pump B. stator C. turbine D. impeller