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The blades of small fans are made of A. tin. B. aluminum. C. steel. D. copper.

Write a boolean method that checks whether a given positive integer n is a perfect square. Use Math's sqrt and round methods to find the square root of n, round it, then square the result and compare with n. Do not use any iterations or recursion.

If my computer has 4 gigabytes of RAM memory how many bytes is that

Assume that a user has many programs; some of them share libraries with each other. The user sometimes runs more than one of these programs at the same time. The user's disk is always slower than the user's main memory (RAM).

A firewall, when properly implemented, can prevent most attacks on your system. A. True B. False

Are websites required to keep logs of visitors by law?

Recall when you built your binary message sending device. Why did we decide to send a message as a sequence of states (A and B) rather than modifying our devices to represent more states (State C, State D, State E, ...)

Public-key cryptography can be used for encryption (ElGamal for instance) and key exchange. Furthermore, it has some properties (such as nonrepudiation) which are not offered by secret key cryptography.

What kind of heat we feel from the sun

What is tail level? A. A volume control that adds more volume to the reverb sound as it decays B. A volume control that sets how close the reverb sound's amplitude is to the original sound C.