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WEEK TEN: DISCUSSION QUESTIONS (J)
1. If we determine uncontroversial facts of science about the environment, does this mean that our ethical conclusions will be certain? Explain.
2. In these scientific models, are we projecting our humanity onto nature - as community, as singular organisms, etc.? Why or why not, and is there a downside to this?
3. If one scientific model is correct, how does that help or hinder our environmental goals? Explain.
You are trying to value Black mores share today (End of 2019). Assume the current price of the share in the stock market is $88.16
The current in a circuit element is i(t) = 4 sin 3t A when t ≥ 0 and i(t) = 0 when t Determine the total charge that has entered a circuit element for t ≥ 0.
Two long parallel wires A and B carry steady currents i a and i b , respectively, in the same direction . The distance between the wires is d. The wires exert forces on each other. Are the forces attractive or repulsive.
Sketch the variation of optical power with time for a digital NRZ bit stream 010111101110 by assuming a bit rate of 2.5 Gb/s. What is the duration of the shortest and widest optical pulse?
an amplifier with a 1 MHz bandwidth and a 20 mV input signal. The input noise = 1 mV, output signal = 6.0 mV, and output noise = 1 mV. Find: (a) SNR at the input (b) SNR at the output (c) Noise figure
Question - Using the Thévenin theorem, determine the voltage V0
1. Derive the sensitivity for a voltage and current source excited Wheatstone bridge. 2. Show the balance condition for a Wheatstone bridge is also true in the sinusoidal steady state if the resistances are replaced with complex impedances.
Assume a receiver is located 10 km from a 50 W transmitter. The carrier frequency is 6 GHz and free space propagation is assumed. Assume the unit gains for the system gains. Find: a) The power at the receiver
1. A sinusoidal waveform is described by the equation: v(t) = 20V sin(120pit) pi = 3.1416 What is the value of the frequency 2. A sinusoidal waveform is described by the equation
Find the total admittance and impedance of the circuits of given figure. - Identify the values of conductance and susceptance, and draw the admittance diagram.
Why should we spinphotoresist at the flat part of the spin curve?
A silicon diode has a reverse current of 5 uA and 25 degrees celcius and 100uA at 100 degrees celcius. What is the saturation current and surface leakage current at 25 degrees celcius
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