What are the two fundamental characteristics of antennas?
What will be an ideal response?
There are two fundamental characteristics of antennas. First, as the frequency gets higher the wavelength becomes smaller. This means that the size of the antenna is smaller. Consider a cellular telephone: it uses a high frequency so only a small antenna is required. Second, as the gain (positive difference in amplitude between two signals) of an antenna increases, the coverage area narrows. High-gain antennas offer longer coverage areas than low-gain antennas at the same input power level.
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When musicians work with additive synthesis, they will often wrap envelopes around the sounds, and even around each added sine wave. An envelope changes the amplitude over time—it might start out small, then grow (rapidly or slowly), then hold at a certain value during the sound, and then drop before the sound ends. That kind of pattern is sometimes called the attack-sustain-decay (ASD) envelope. Pianos tend to attack quickly, then decay quickly. Flutes tend to attack slowly and sustain as long as you want. Try implementing that for the sine and square wave generators.
Note: It is unclear what “that” refers to in the last sentence of the question. Due to its proximity, the best assumption is that it refers to the previous sentence, especially given that that the sine and square generations can sustain for “as long as you want”.
In the Restrict Editing pane, when you click Yes, Start Enforcing Protection, ________ displays
A) the Start Enforcing Protection dialog box B) the open document C) a new document D) the Password dialog box
The first step of a risk assessment is to identify threats and vulnerabilities
Indicate whether the statement is true or false.
Case-Based Critical Thinking QuestionsCase 10-1Elaina is the database administrator for a women's fitness franchise. She has been asked to automate several of the database functions to make it easier for the front desk employees to provide information to clients. Elaina will create macros to automate the functions. Elaina needs to move the focus to a particular field in the Client form. Which Access action should she add to the macro?
A. GoToControl B. OpenForm C. FindRecord D. SelectObject