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In a controversial study to determine the effectiveness of AZT, a group of HIV-positive pregnant women were randomly assigned to get either AZT or a placebo. Some of the babies born to these women were HIV-positive, while others were not.
(a) What is the explanatory variable?
(b) What is the response variable?
(c) What are the experimental units?
(1) If the frequency was changed, what would happen to the current in a circuit Explain increase or decrease. (2) If you have R = 2 K ohm, Xc = 3 K ohm, XI = 4 K ohm . Find the G, Bc, BI, Yt anf Zt.
A charged particle starts from rest at the origin of coordinates in a region where there is a uniform electric field E parallel to the x-axis, and a uniform magnetic flux density B parallel to the z-axis. Show that the coordinates of the particle ..
Draw a few equipotential lines. Remember, these are the curves that circle the charge distribution, always perpendicular to the electric field lines.
A sequential circuit with two D flip flops, two inputs x and y, and one output z is specified by the following next state and output equations: A(t + 1) = xy + x'B B(t + 1) = y'A' + yB
This counter has an output"odd" whose value is 1 when the current count value isodd. Use the sequential design technique. Start from a state diagram, draw the state table, minimize the logic, and draw the final circuit.
Consider four simple cases of the MOS capacitor, all combinations of low gate metal work function (e.g. Al qΦM ≈ 4.05 eV), high gate metal work function (e.g. Pt qΦM ≈ 5.15 eV), n+type silicon and p+type silicon substrate.
The dielectric constant of a solid is 5. It is placed between the plates of a capacitor which are 1mm apart and which are charged to 100 V. Calculate the capacitance per square metre of this device and the local electric field acting on an atom in..
question 1consider two digital sequenceshere m is a positive integer and is a value in the intervala using the
An embedded system consumes the following current when in different operating modes: Operating Mode Avg. Current Time Data Acquisition 4.2 mA 1.8 ms Communication 22.6 mA 2.5 ms Sleep Mode 0.5A 5 hours
An electric field in free space is given as E=(x,4z,4). Given VA=10v, calculate the electric potential difference VAB & VB, where A is (1,1,1) and B is (3,3,3), assuming V=9 at (2,4,6).
A core with three legs is shown in Figure. Its depth is 8 cm, and there are 400 turns on the center leg. The remaining dimensions are shown in the figure. The core is composed of a steel having the magnetization curve shown in Figure. Answer the ..
Design a three-bit binary counter that iterates over the following states when X = 0 and repeats 000 010 110 011 101 001 100 111 When X = 1, the counter should go through the states in the reverse order Use one JK, one T, and one D flip-flop, in any ..
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