Which of the following is best described as an online service information system (SIS)?
A. Access Freightliner
B. Wikipedia
C. Google
D. How stuff works?
Answer: A
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Vermiculite is a human-made ingredient of soilless media
Indicate whether the statement is true or false
A public utility in a medium-size city is considering two cash rebate programs to achieve water conservation. Program 1, which is expected to cost an average of $60 per household, provides a rebate of 75% of the purchase and installation costs of an ultra-low-flush toilet ($100 max). This program is projected to achieve a 5% reduction in overall household water use over a 5-year evaluation period. This will benefit the citizenry to the extent of $1.25 per household per month. Program 2 involves turf replacement with xeric (low water need) landscaping. The program is expected to cost $500 per household, but it will result in reduced water cost estimated at $8 per household per month (on the average). Use the B/C method at a discount rate of 0.5% per month to determine which
program, if any, the utility should undertake. The programs may be (a) mutually exclusive, or (b) independent. What will be an ideal response?
The current entering the positive terminal of a device is i(t) = 6e^-2t mA and the voltage across the device is v(t) = 10di/dt V.
(a) Find the charge delivered to the device between t = 0 and t = 2 s. (b) Calculate the power absorbed. (c) Determine the energy absorbed in 3 s.
A continuous-time signal x(t) consists of the periodic repetition of an even function. It is represented by a CTFS using its fundamental period as the representation time.
(a) What is definitely known about its complex (exponential form) harmonic function? (b) If the representation time is doubled, what additional fact is known about the new complex harmonic function?