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Air pollution in the Mexico City metropolitan area is among the worst in the world. The concentration of ozone in Mexico City has been measured at 441 ppb (0.441 ppm).Mexico City sits at an altitude of 7400 feet, which means its atmospheric pressure is only 0.67 atm.
(a) Calculate the partial pressure of ozone at 441 ppb if the atmospheric pressure is 0.67 atm.
(b) How many ozone molecules are in 1.0 L of air in Mexico City? Assume T = 25 °C.
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Discuss some key characteristics of "load lines". What information does a load line provide you. Discuss key quantities from a zener diode data sheet. What are most important for a circuit designer.
Solve y"+y'-2y=2x^2, y(0) = 0, y'(0) = 1 following these steps a) find homogeneous solution, b) find nonhomogeneous solution with method of undetermined coefficient with constants evaluated,
What real, reactive, and apparent power does the generator supply when the switch is closed - What real, reactive, and apparent power does the generator supply when the switch is open? Solve in per units and convert to real watts, VARS and VAs
They melt when 3.9 × 104 J of heat is added to A and when 11 × 104 J is added to B. (a), (b) Determine the latent heat of fusion for the substance from which each object is made. (c) Find the heat required to melt object A when its mass is 7.4 kg.
Design a series resonant circuit to have a bandwidth of 400 Hz using a coil with a Ql of 20 and a resistance of 2. Find the values of L and C and the cutoff frequencies.
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The objective of this lab experiment is to introduce you to assembly language programming for solving mathematical problems. You will use DEBUG to conduct this lab. Consider the following: The sun is 93,000,000 miles from the Earth. The speed..
A BJT differnetial amplifier, biased to have re = 100 Ω and utilizing two 100 Ω emitter resistors and 5 kΩ loads, drives a second differential stage biased to have re = 50 Ω. All BJTs have β = 100. What is the voltage gain of the first stage
Design a 2nd,4th , and 6th order Butterworth band stop filters with a center frequency at 450 rad/sec and a bandwidth of 100 rad/sec. the final answer should be a ratio of polynomials in descending power of s.
Using VDD = 1 .8 V and a pair of matched MOSFETs, design the current-source circuit to provide an output current of 200μA nominal value. To simplify matters. assume that the nominal value of the output current is obtained at Vo ≈ VGS.
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