Answer:
Professional engineering license
Bachelor's degree
Computer science classes
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Answer:
b
Explanation:
a) ADC is located on DAQ filter but not the reconstruction filter
b) to remove aliasing, the sampling rate must be greater than or equal ot twice the highest frequency component in the input signal. In other words, all frequencies in input sgnal are less than fs/2. Therefore, frequencies greater than fs/2 are removed by anti-aliasing filter
c) the DAC can have different sampling rate from ADC
Answer:
Using Hilbert Transformation, we can transmit two independent base-band information signals by using SSB on a common-carrier frequency.
Explanation:
- In SSB modulators, we pre-process a real signal by Hilbert Transform filter to form another real signal
- The signal has the same spectral amplitude but has 90° phase shift at each frequency relative to its input signal.
- The ordered pair gets almost all of its negative components cancelled
- thus, with the use of Hilbert Transformation, we can transmit two independent base-band information signals by using SSB on a common carrier frequency.
Answer:
A) $18.36
B) $10.24
Explanation:
Heat supplied Q = 24000 kJ/h
J/s = watt
I hour = 3600 sec, therefore 24000 kJ/hr becomes 24000/3600 = 6.67 kW
Coefficient of performance of heating for heat pump is
COP = T2/(T2 - T1)
T2 (hot temperature) = 20 °C
T1 (cold temperature) = -7 °C
COP = 20/(20 - (-7)) = 20/27 = 0.741
Also COP = Q/W
where W is the power input to the heat pump
0.741 = 6.67/W
W = 9 kW
Operating for one day is 24 hr
Therefore heat pump uses 9 x 24 = 216 kWh
Cost per day = ¢8.5 x 216 = ¢1836 = $18.36
For ground at 5°C
COP = 20/(20-5) = 20/15 = 1.33
1.33 = 6.67/W
W = 5.02 kW
For 24 hr it becomes 24 x 5.02 = 120.48 kWh
Cost = 8.5 x 120.48 = ¢1024.08 = $10.24
Answer: B) 5
Explanation:
The given data are:-
Bank Reserve Requirement = 10%
additional percentage held as excess reserves = 10%
Therefore, total reserve ratio will be = 20% = 0.2
Now using the money multiplier formula which is;
Money Multiplier = 1 / reserve ratio
Money Multiplier = 1 / 0.2
Money multiplier = 5
This simply means that a single dollar in new reserve will lead to 5 dollars in additional money through the Multiplier process.