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Calculate the standard enthalpy change for the reaction of an aqueous solution of barium
hydroxide, Ba(OH)2, with an aqueous solution of ammonium nitrate, NH4NO3, at 25°C. The complete ionic equation is
Ba2+(aq) + 2OH- (aq) +2NH4+(aq) +2NO3 - (aq) à2NH3(g) + 2H2O(l) + Ba2+ (aq) + 2NO3 -(aq)
Parallel plate waveguide has plate seperation of 2cm, filled with dielectric material with an index refration of n=3, lenght of wavelengh guide z=50m opertaing at 10 Ghz. a) find the cutoff frequency
Determine the standing wave pattern for the voltage in the line. Express the result in real insantaneous form and simplify
The following functions describe the oscillations in electric circuits and the vibrations of machines and structures. Plot these functions on the same plot. Because they are similar decide how best to plot and label them to avoid confusion.
A constant(dc) current i(t)=3mA flows into a 50x10^(-6) capacitor. The voltage at t=0 is v(0)= -20V. The references for v(t) and i(t) have the passive configuration. 1. find the power at t=0 2. state whether the power flow into or out of the capaci..
In a certain system, an electrical heating element was found to increase the temperature of a piece of metal 7o for each amp of current. The metal expands 0.004 in./deg and pushes on a load sensor that outputs 1 V/0.003 in.
given analog signal : x(t)=8cos(6,000pi)+5cos(14,000pit) t>=0 sampled at rate 12,000 Hz a) sketch the spectorum of the orignal signal and the sampled signal from 0 KHz and 25 KHz.
A natural gas power plant has a condenser that extracts 28,000 Btu/kg of natural gas. Compute the mechanical energy of the turbine and the overall system efficiency
a) Based on your decision create a sampled signal of the sum of the two sines, and plot the magnitude of the zero centered FFT with property frequency annotation. Did it work Check with the data tip tool.
Is the second law satisfied? Will this refrigerator still satisfy the second law if its coefficient of performance is 6?
A) Design a low-pass filter with a cutoff frequency of 12 kHz. Use 0.15 uF capacitor and an appropriate resistor. B) Sketch and label the circuit. C) What is the gain of the filter at a frequency of 20 kHz Give your answer both as ratio (Vout/Vin) an..
Let x and y be Bernoulli randon variables that take on values 1 and 0. X is distrubuted with p = 0.5. What distribution on y will maximize the Kullback-Leibler divergence (D(x||y)
Determine the peak-to-peak current ripple in the output inductor for a forward converter and determine the output voltage ripple of the converter . We know the following parameters: duty cycle d, input voltage Vin, turn ratio: N1/N2
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