Electric field of multiple point-charges: Three equal negative point charges are placed at three of the corners of a square of side d as shown in the figure. Which of the arrows represents the direction of the net electric field at the center of the square?

Each plate of a parallel-plate air-filled capacitor has an area of 0.0020 m2, and the separation of the plates is An electric field of is present between the plates. What is the surface charge density on the plates? (ε0 = 8.85 × 10-12 C2/N • m2)

Unlike for 1st order filters,  pass-band gain K, quality factor Q, and cutoff frequency can be independantly adjusted for 2nd order active LPFs and HPFs that were used in lab.

Give the Quality Factor (Q) of this second-order filter. Round your answer to the nearest 0.1.   

The following schematic shows an active first-order high pass filter.   

You are evaluating a project for The Farstroke golf club, guaranteed to correct that nasty slice. You estimate the sales price of The Farstroke to be $430 per unit and sales volume to be 1,000 units in year 1; 1,500 units in year 2; and 1,325 units in year 3. The project has a 3-year life. Variable costs amount to $240 per unit and fixed costs are $100,000 per year. The project requires an initial investment of $174,000 in assets, which can be depreciated using bonus depreciation. The actual market value of these assets at the end of year 3 is expected to be $38,000. NWC requirements at the beginning of each year will be approximately 20 percent of the projected sales during the coming year. The tax rate is 21 percent and the required return on the project is 10 percent. What change in NWC occurs at the end of year 1?

In a standard peak hold circuit, when the input is less than the stored maximum value, the voltage across the capacitor:

If you use your scope to view the FFT of the output signal of the circuit shown, how many peaks would you observe?     

If the time constant of a peak hold circuit is infinite, the output will be a horizontal line. (T/F)

What kind of movement is shown in this figure?  Write the correct answer in the blank from the list below. Eversion Extension Flexion Circumduction Rotation