Numerade

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2. (5 points) A filter has frequency response $H(f) = \begin{cases} 22.4\angle30^\circ, & 3500\text{Hz} < f < 4500\text{Hz} \\ 0, & \text{elsewhere} \end{cases}$ (a) What kind of filter (lowpass, highpass, bandpass, and bandstop) is it? (b) What are its central frequency and the quality factor? (c) What is its response to the input signal $v(t) = 20 \cos(8200\pi t + 45^\circ)$?

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Metallic iron crystallizes in a cubic lattice. The unit cell edge length is 287 pm. The density of iron is 7.87 g/cm³. What type of cubic lattice structure does iron likely to have? (molar mass of Fe is 55.85 g/mol)

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do physically attractive people seem to differ in personality from physically unattractive people

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________ is the application of the overload principle to muscular strength and endurance.

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Find an equation of the tangent line to the curve at the point (1, 1). $y = \ln(xe^{x^8})$

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A Gram-positive bacterium has a thick peptidoglycan cell wall. How does this structure differ from the cell wall of a Gram-negative bacterium? a) It is composed entirely of carbohydrates. b) It lacks an outer membrane. c) It is more susceptible penicillin antibiotics. d) It contains lipopolysaccharides (LPS).

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Question 22 Conversion therapy describes interventions that purport to change a person's sexual orientation or gender identity. This practice has been found to be unethical and harmful by the American Counseling Association and the American Psychological Association. True False

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Compare the following two alternatives below on the basis of their present worth using an interest rate of 14% per year compounded monthly. Which alternative do you prefer? (Consider the useful life is 5 years for each alternative). Alternative X Y Initial cost, $ 40000 60000 Monthly Maintenance and 5000 0 operations cost, $ Semi-annual maintenance 0 13000 and operations cost, $ Salvage value, $ 10000 8000

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Write a program that first gets a list of integers from input. The input begins with an integer indicating the number of integers that follow. Then, get the last value from the input, which indicates a threshold. Output all integers less than or equal to that last threshold value. Ex: If the input is: 5 50 60 140 200 75 100 the output is: 50,60,75, The 5 indicates that there are five integers in the list, namely 50, 60, 140, 200, and 75. The 100 indicates that the program should output all integers less than or equal to 100, so the program outputs 50, 60, and 75. For coding simplicity, follow every output value by a comma, including the last one. Such functionality is common on sites like Amazon, where a user can filter results.

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The two switches in circuit move synchronously where S? was closed for a long time and it opens at t = 0 and S? was open for a long time and it closes at t = 0. 1-0 1-0 8? 4? 2? 1A 1 6H Ve FSV 16. What is the initial voltage across the capacitor? A. 40 V B. 8V C. -3.33 V D. 4 V E. None of the above 17. What is the initial current in the inductor? A.-0.833 A B. -0.5 A C. 1A D. 5 A E. None of the above 18. What is the derivative of the voltage of the capacitor with respect to time at t = 0+? A. 55 V/s B. 45 V/s C. 30 V/s D. 0 V/s E. None of the above 19. What is the derivative of the current of the inductor with respect to time at t = 0+? A. 1 A/s B. 0 A/s C. 2.44 A/s D. 3.33 A/s E. None of the above 20. What is the final current of the inductor and the final voltage of the capacitor? A. 14. 8V B. 10A, 80V C. 1A. -80V D. 04. OV E. None of the above

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tyler a.