Two cycles of both input and output signals of a peak hold c…

Two cycles of both input and output signals of a peak hold circuit have been shown in the figure below. The first cursor is placed at the peak value (Vpeak) of the output signal and the second cursor is placed at 0.368 Vpeak. Given this information and knowing that the amount of memory the circuit has is determined by the size of R1 and C1 calculate the value of R1 if C1 = 10 μF. Express your answer in Ohms, rounded to the nearest Ohm.

The peak-hold circuit shown below was built using some unkno…

The peak-hold circuit shown below was built using some unknown values of R1 and C1.    When you applied a sine input, you observed a time constant of 2 ms. You further observed that when you connected a 30 kΩ resistance in parallel with R1, the time constant reduced by a factor of 3. Answer the following questions. What is the value of R1? Enter your answer in kΩ

Consider the following annual returns (rounded) of Pepsi’s c…

Consider the following annual returns (rounded) of Pepsi’s common stock:  Pepsi’s Annual Return (%) 2016 5 2017 15 2018 -8 2019 24 2020 9 a.  Compute the average return, standard deviation, and coefficient of variation for Pepsi.  Show your work. b.  Coca-Cola during the same time period had an average return of 2.40%, a standard deviation of 5.37%  and a coefficient of variation of 2.24.  Based upon this information for Pepsi and Coca-Cola, which stock is preferred? Explain.