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1 consider a glass of water in a room at 27degc and 97 kpa if the relative humidity in the room is 100 percent and the
foam products such as shaving cream are made by liquid mixtures whose ingredients are primarily water and a refrigerant
an ammonia-water absorption refrigeration unit operates its absorber at 0degc and its generator at 46degc the vapor
in absorption refrigeration systems a two-phase equilibrium mixture of liquid ammonia nh3 and water h2o is frequently
1 a wall made of natural rubber separates o2 and n2 gases at 25degc and 500 kpa determine the molar concentrations of
what is the total mass of the liquid phase of prob 16-73prob 16-73an oxygen-nitrogen mixture consists of 30 kg of
1 show that the dual of the exclusive-or is also its complement2 derive the circuits for a three-bit parity generator
the exclusive-or circuit of fig 332a has gates with a delay of 4 ns for an inverter a 8 ns delay for an and gate and a
1 a majority logic function is a boolean function that is equal to 1 if the majority of the variables are equal to i
q1a in relation to fourier analysis state the meaning and significance ofi odd and even functionsii half-wave symmetry
1 the nominal output voltage of a certain regulator is 8 v the output changes 2 mv when the input voltage goes from 12
1 a certain regulator has a no-load output voltage of 10 v and a full-load output voltage of 990 v what is the percent
with a constant input voltage of 17 v the load resistance in figure 11-43 is varied from 10 k omega to 12 k omega
if the maximum allowable input voltage in figure 11-43 is 25 v what is the maximum possible output current when the
1 what is the antilog of 162 explain why the output of a log amplifier is limited to approximately 07 v3 what is the
1 a certain ota has an input voltage of 10 mv and an output current of 10 ma what is the transconductance2 a certain
the op-amp in the input stage of a certain isolation amplifier has a voltage gain of 30 the output stage is set for a
the frequency spectrum in figure 13-54 is for the output of a standard amplitude modulatordetermine the carrier
for the same conditions stated in problem 19 determine the frequency spectrum at the output of the am detector
1 explain how a vco is used as a frequency modulator2 how does an fm signal differ from an am signal3 explain how an
1 name two conditions for a pll to acquire lock2 a certain fiber-optic cable has a core index of refraction of 143 and
1 the input to a certain am receiver consists of a 1500 khz carrier and two side frequencies separated from the carrier
1 a voice signal ranging from 300 hz to 3 khz amplitude modulates a 600 khz carrier develop the frequency spectrum2
the frequency spectrum in figure 13-55 is for the output of a balanced modulator determine the carrier frequency and