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Digital square wave signals are actually composites of multiple analog sine waves. In fact, many different types of waveforms (such as square waves, sawtooth waves, etc.) can be created by combining various forms of analog sine waves. (There is an area of mathematics called Fourier Analysis which examines such concepts.)

The more analog sine waves that you add together, the closer the waveform approaches the intended form. To examine this, locate a webpage that allows you to interactively combine analog waveforms. One such page is at  (Links to an external site.)

Links to an external site.

. You can find many others by searching for fourier java applet. Notice how the square wave is combined of multiple sine waves. The first sine wave has a relatively slow frequency with a relatively high amplitude. The second sine wave has a higher frequency but a lower amplitude. (You can note each of these sine waves in the falstad site by moving the cursor over the sine component in the middle graph.)

Questions: In your opinion, how many sine components are necessary to create a square wave that is “square”?

What happens if you increase the amplitude of a component? 

What happens if you increase the frequency of a component?

 

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October 3, 2021by

write my assignment 29994

VB Chapter 004 Decisions and Conditions1) In an If statement, when the expression is true, _______. A. Only the Else clause is executedB. Only the ElseIf clause is executedC. Only the End If statement is executedD. Only the Then clause is executed2) Which of the following is a comparison operator? A. AndB. >C. +D. &3) When comparing strings, which one of the following strings is less than the others, based on the ANSI code? A. ONETWOTHREEB. onetwothreeC. OneTwoThreeD. 1Two34) ______________ will be the result of: MessageText .Text = MessageText .Text.ToUpper() when the value of MessageText .Text is “Visual Basic is fun!”. A. Visual Basic is fun!B. VISUAL BASIC IS FUN!C. visual basic is fun!D. VisualBasicisfun!5) What will display in MessageLabel when the following statements are executed? Assume that CountInteger = 10. MessageString = “Visual Basic is fun”IF CountInteger <= 10 ThenMessageLabel.Text = MessageString.ToLower()ELSEIF CountInteger > 20 ThenMessageLabel.Text = MessageString.ToUpper()ELSEMessageLabel.Text = MessageStringEND IF A. VISUAL BASIC IS FUNB. Visual Basic Is FunC. visual basic is funD. syntax error6) Which of the following is NOT a logical operator? A. IfB. OrC. AndD. Not7) With the logical operator _______ , both expressions must be true for the entire expression to evaluate True. A. AndB. OrC. AndAlsoD. OrElse8) With the logical operator _______ , if the first expression is True, the second expression will not be evaluated. A. AndB. OrC. AndAlsoD. OrElse9) Which of the following is correct code for determining if a checkbox is checked? A. If Senior.Checkbox = True ThenB. If SeniorCheckBox.Checked = True ThenC. If SeniorCheckBox.Checked ThenD. Both answers B and C are correct.10) An If contained within another If statement is _______. A. A nested IfB. A compound expressionC. An embedded contradictionD. Impossible to do in VB11) Nested Ifs are allowed, _______. A. But you are limited to only 4 levels of IfsB. But each If must have an End IfC. Can be difficult to follow if they are nested too deeplyD. Both answers b and c are correct.12) Use the Visual Studio intrinsic constant, _______, to determine line endings. A. VB.MultilineB. Environment.NewLineC. VS.NewLineD. VB.NewLine13) The Show method of a MessageBox returns a _______ object that you can check to see which button the user clicked. A. ShowB. ShowMeC. SelectedD. DialogResult14) Checking to verify that appropriate values have been entered for a text box is called _______. A. verificationB. validationC. a MessageBoxD. a watch expression15) Which of the following statements does NOT apply to the Case structure? A. It can be used instead of nested Ifs.B. It can be used for testing numeric and string values.C. It must begin with Select Case and it must end with End Case.D. Case Else is optional.16) The Select Case statement is a code structure used for ________. A. repetitionB. selectionC. sequenceD. none of these17) The Select Case statement must end with __________. A. End SelectB. End CaseC. Select EndD. Case End18) _______ is an optional clause available for the Case Structure when no match is found in any of the Case statements. A. Case ElseB. DefaultC. ElseIfD. Else Case19) What is the value of MysteryInteger when the following statements are executed? Const NUMBER_Integer As Integer = 10Select Case NUMBER_IntegerCase 1, 3, 5, 7, 9MysteryInteger = NUMBER_IntegerCase 2, 4, 6, 8, 10MysteryInteger = NUMBER_Integer + 1 * 2Case ElseMysteryInteger = NUMBER_Integer * 2 + 1End Select A. 10B. 12C. 21D. 2220) When you share an event procedure with radio buttons, Visual Basic creates and passes a system variable object named, _______, which has a name property containing the name of the selected button. A. senderB. integerC. sourceD. number 21) You can write a set of instructions in an event procedure and then ________ the event procedure from any other procedure. A. declare the variables inB. force a break inC. use Option Explicit inD. call22) The Debug.WriteLine method will display its results in the ________ window. A. DebugB. ImmediateC. WriteLineD. Breakpoint23) You can use _______________ as your project executes in order to view the values of variables and control contents that are referenced in the current statement and a few statements on either side of the current statement. A. the Locals windowB. the Procedure BoxC. the Autos windowD. Step Into24) The _______ displays all objects and variables that are within scope during a break in program execution. A. the Locals windowB. the Procedure BoxC. the Autos windowD. Step Into

 

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October 3, 2021by

write my assignment 24762

I need help creating a thesis and an outline on Weapons, Personal Protection Equipment & Use of Force. Prepare this assignment according to the guidelines found in the APA Style Guide. An abstract is required. An immediate situation, in this case, is dealt with using the required amount of force.

Personal safety can be enhanced through proper planning, foreknowledge and awareness to prevent a person from becoming a victim of criminal acts or terrorism. Since security measures are not fooled proof individuals are required to be prepared to handle circumstance when there is an attack. Vehicle armour, body armour, gas masks and other protective equipment dramatically increases the chances of surviving a physical attack.

The concept of the use of personal protection equipment is in vogue for thousands of years when man began the use of clubs and stones in combat. Armour has evolved during the various ages of human history (Katz & Caspi 2003 p.99).

The invention of gunpowder and its use as a propellant has forced the man to use armours to protect from such projectiles. Different kinds of armours are used to protest the user from a specific level of threat. Soft body armour is flexible protection equipment worn by police officers to protect the user from handgun bullets but does not protect a person from the high powered rifle. Hard armour is essential to protect a person from rifle shots but it cannot be worn for a longer duration due to its rigidity and weight. Further, hard armour cannot be worn as a covert under clothing. Hence, it is not recommended for executives requiring protective equipment to be used under a suit. A lightweight protective vest with a lower protection level with better flexibility and comfort is appropriate for these circumstances (Katz & Caspi 2003 p.100).

Soft body armour is available in several brands which can be used under a suit. Zylon shield is a new material that is flexible to develop concealable armour with good protection. Though there are many other materials to make concealable vests, they do not offer equal performance as given by Zylon shield.&nbsp.

 

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October 3, 2021by

write my assignment 28517

“The Wedding Fight”

Background

Kyle and Kelly have been dating for three years. They’ve recently become engaged and are planning their upcoming wedding (1 month away).

Kelly: Hey, guess what. We got our invitations today. We can write up our final list and mail them out this weekend.

Kyle: I thought you were doing that.

Kelly: You thought I was doing that? You always say you’re going to help, but when it actually comes down to it, you don’t. Or should I say won’t.

Kyle: You know it’s finals, and I have to study. I just don’t have the time.

Kelly: So what do you think I’ve been doing, sitting on my backside? Besides, since when did YOU decide to become a serious student?

Kyle: (under his breath) Here we go again. More like my mother every day.

Kelly: Why don’t you say it loud enough so I can hear it? What exactly is that supposed to mean anyway? Maybe I wouldn’t have to act like your mother if you didn’t act like such a child!

Kyle: Well, somebody’s gotta relax around here. You’re so uptight, and I don’t just mean about the wedding invitations.

Kelly: What do you mean, uptight?

Kyle: Cold, totally disconnected.

Kelly:  How am I cold?

Kyle:  Like it takes a genius to figure it out.

Kelly:  You don’t care about this wedding at all. Do you even care about me at all?

Kyle: That’s ridiculous. You’re right—-I couldn’t care less about the wedding. It’s the wedding night I’m worried about.

Kelly: Oh my God, I can’t believe this is about sex. I’m talking invitations and you’re talking sex. That’s all you care about. Well, sex and football. I don’t know if I’m madder about the wedding or the stupid football games we go to every single week, Mr. Serious College Student. You have plenty of time for that.

Kyle: What do you mean—We haven’t gone the last two weekends because of all this wedding planning.

Kelly: (sarcastically) Well, aren’t you the perfect martyr. You’ve given up so much for me. I’m impressed!

Kyle:  (exasperated, but resigned) You know what—just tell me what to do and I’ll do it. I’ll write the stupid invitations.

Kelly:  You could start by picking out your tux.

Kyle. I did. You didn’t like it. Big shocker there.

Kelly: What do you expect me to say about a white tux—nobody wears white tuxes anymore.

Kyle: Well, I like it, and that’s what I’m going to wear.

Kelly: Oh, come on. You’re not really going to wear that. Even your Mom said you should wear something more serious. Black would be better.

Kyle: Are we planning for a wedding, or a funeral?

Discuss the following questions. You should identify strategies for managing anger effectively (actions both Kelly and Kyle might take to better manage the other person’s anger) as well as potential obstacles for achieving those goals.

  1. Discuss the role of anger in this conversation.
  2. Evaluate Kelly’s expression of anger. How could she have expressed her anger more effectively?
  3. Evaluate Kyle’s reception of Kelly’s anger. Describe strategies Kyle could have used to manage the conflict more productively?
  4. Give one example of how you could help either person reframe her or his interpretation of the other.
  5. Describe the obstacles Kelly and Kyle might have to overcome. 

 

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October 3, 2021by