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Suppose you wanted to use public-key cryptography to submit a final paper via email so that only your instructor could read it. Which key would your instructor use to decrypt your submission?

How would recording (i) with a sampling rate of 20kHz recorded and using 8 bits/sample differ from recording (ii) with a sampling rate of 20kHz and using 16 bits/sample?

[Optional] You may add notes about the prior question here.

Suppose you took a digital picture of a poster that used only sixteen distinct colors, and you want to compress it.  If your digital camera stores pictures using a color depth of 64 thousand colors (that is, 16 bits per pixel) you could save a lot of file space by reducing the number of bits used for each pixel. What would be the optimal number of bits to use?  Show your calculations.

What type(s) of modulation are illustrated in the figure to the below? 

Which of the following nursing interventions would be appropriate for an individual with a nasogastric tube for decompression?  Select all that apply.

The nurse is reviewing the health history for a client who is receiving enteral feedings. Which data are relevant as indications for the enteral feedings? Select all that apply.

Name depression indicated.

Name the pelvic region indicated.

B. Robert and his host mother are talking in the morning.(1×4=4)   [1] Robert is going to a cafe with his classmate today. [2] Robert and his classmate are going to eat breakfast together. [3] Robert’s classmate speaks English. [4] Robert goes to his classmate’s house around 4:30.