Which type of wave has points called nodes that do not move ?

A standing wave, also known as a stationary wave, is a wave that has a point called a node and does not move. Stationary waves are formed when two opposing waves that have identical frequencies and are traveling in mediums that are moving in opposite directions combine. In a stationary wave, each point on the axis has a constant amplitude. The nodes of a standing wave are areas at which the amplitudes are at a minimum. The locations on a standing wave where the amplitude is at a maximum are called antinodes. Standing waves can be formed by transverse waves, such as those created along a string. However, standing waves can also be formed by longitudinal waves, such as those formed within an air column.

Which of these events resulted from the end of iconoclasm during the Macedonian Dynasty? A. New freedoms granted to painters led to a rebirth of...

During the 8th and early 9th centuries, Byzantium was under the control of emperors who believed in iconoclasm---the belief that all religious images are sacrilegious and must be destroyed. As a result, many sculptures and works of art were destroyed, and there was little incentive for artists to create new ones, because those too would likely be destroyed if they had even the remotest religious themes.

But starting in the mid 9th century and continuing until the 11th century, Byzantium's government changed, starting with Emperor Michael III and then continuing into what is called the Macedonian Dynasty, a series of emperors who were ethnically Macedonian. During this period, iconoclasm was repudiated and the government began funding and protecting works of art, including religious art, that previously would have been destroyed.

This makes the best answer A: New freedoms granted to artists resulted in a flourishing of new Byzantine art where it had previously been suppressed.

In Shakespeare's Othello, how does Othello blame Desdemona for doing bad things?

In Shakespeare's Othello, Othello blames Desdemona for supposedly being unfaithful to him by continually calling her a "strumpet," or in other words a whore.  When Othello tells Desdemona that she is on her deathbed, he asks her if she has prayed that evening, which suggests that Othello believes Desdemona to be a sinner--he wants her to make herself right with the Lord before he ends her life.  Othello believes the ruse that Iago has set up throughout the play, and Othello thus refers to the supposed affair with Michael Cassio.  At first, Desdemona is not aware of the reason why Othello has claimed her to be false, but later he tells her directly that she must be murdered for having had an affair with Cassio.  Although Desdemona tells Othello the claim is false, Othello does not believe her and continues blaming her for being unfaithful.

How would you describe the four main characters in the short story "The Veldt"?

Lydia Hadley, the mother, is concerned that the automated house (namely, the nursery) is having a detrimental effect on the children. She is the first to suggest, to George, that they should have the nursery checked out by a psychologist. George is logical and marvels at the science behind the nursery. Lydia supposes it is real and is afraid of it. She runs when the lions chase them. George follows but, being logical, insists that the lions are illusions. She insists that they lock the nursery for a few days. She is genuinely afraid of the lions but she's also worried that the automated house has replaced them as parents. Eventually, George agrees that the nursery should be turned off because too much of anything isn't healthy. George and Lydia want the best for their children, but they have let the house and nursery be parent and playmate of the children for too long. George concludes: 

They're insufferable—let's admit it. They come and go when they like; they treat us as if we were offspring. They're spoiled and we're spoiled. 

Peter and Wendy are spoiled children. Peter is very intelligent and defiant. He does not hesitate to threaten his parents when they decide to lock the nursery. They are both fully addicted to the nursery and they get hysterical when George finally locks it up. The children show how diabolical they have become in trying to keep their nursery when the lock their parents in. The children have no significant feelings for their parents. They only love the nursery. One could blame them, but George and Lydia have not given them any discipline and this has allowed them to develop into defiant, spoiled brats. 

Discuss how Macbeth and Lady Macbeth's feelings are portrayed in Act 2 of the play Macbeth.

The first scene deals with Macbeth's thoughts as he ponders the terrible act he is about to perform. He has spoken to Banquo who told him that he had dreamt about the witches and Macbeth had asked him that they speak about them at an opportune time. Macbeth also informed Banquo that he will bring him great honour should Banquo support him. Banquo tells him that he will maintain his love and allegiance to his king, if he should be involved in any discussion. This implies that he might suspect that Macbeth is up to no good.

Once Banquo has gone to bed, Macbeth, in at the beginning of a soliloquy, mentions that he is waiting for the signal from Lady Macbeth to proceed to Duncan's chamber and murder him. It is at this point that he imagines seeing a dagger float in front of him. Macbeth is clearly in a terribly anxious state and the hallucination he sees is, to him, 'a dagger of the mind, a false creation proceeding from the heat oppressed brain.' He realizes that it is an optical illusion, but it becomes more defined for he then sees gobs of blood on its blade. He realises that it is the horror of the moment - the silence and the terrible act he is about to commit - that creates this ocular fantasy. He asks for the cobblestones in the courtyard to hide the sound of his footsteps in the eerie silence. He then states that as long as he is only a threat, Duncan remains alive, meaning that he has to kill him soon.

When the bell rings, he responds and mentions that once he goes, the deed will be done. He asks that Duncan not hear its sound because it is the last thing he will hear - the sound that signals his departure to either heaven or hell.

Scene two opens with Lady Macbeth's thoughts in which she expresses that she had done her part and that she was inspired by the drink that she had given Duncan's guards to make them drunk. she mentions the owl's cry which is a portent of Duncan's death Lady Macbeth has left the doors to his chamber open and she realizes that her husband is committing the heinous deed. She has also drugged the guards drinks which could even kill them - death or nature will determine if they survive.

The tense atmosphere leads to Lady Macbeth getting a fright when she hears her husband. She fears that the guards have awoken and that they had not been successful. She hopes that Macbeth had found the guard's daggers which she put at the ready and declares that she would have killed Duncan herself if he did not resemble her father so much.  

When Macbeth arrives he tells her that he had killed the king and anxiously asks her if she did not hear a noise. She says that she only heard the owl shriek and the crickets cry. The two are very tense and nervous. When Macbeth looks at his bloody hands he comments on what a sorry sight they are and Lady Macbeth quickly corrects him, saying that it is a foolish thought. Macbeth shows how truly distraught he is by mentioning that he could not say 'Amen' and that he had heard voices after killing Duncan. His wife seems to be more in control and tells him that he is acting cowardly.

Lady Macbeth tells him to wash the blood off his hands and asks why he had brought the guards' daggers with him and that he should return them. Macbeth refuses to go back and she offers to return the daggers and smear them with Duncan's blood to implicate them. Macbeth is obviously unnerved and when he hears knocking, he wishes that it could wake Duncan. He is clearly disgusted with himself for what he had done.

When Lennox and Macduff enter, Macbeth tells them at some point that it had been 'a rough night' - clearly an ironic statement. when Macduff discovers Duncan's bloodied corpse and cries out to awake everyone, Lady Macbeth acts the innocent and enquires what is causing the uproar. Macduff kindly tells her that it is not for her gentle ears to hear. Macbeth makes quite a speech about how wonderful Duncan was and that all that was important to him had ceased to exist, the moment Duncan died.

Macbeth then confesses that he had killed both of the guards out of anger and when Macduff wants to know why, he makes a speech about how he could not help himself to see the guilty guards lying there with Duncan's blood all over them. He suggests that no man who was loyal to Duncan could have resisted from lashing. He had slain them as a matter of honor and duty. To distract attention away from her husband, lady Macbeth seemingly faints and is carried away.

In The Crucible, what has happened in the town of Andover?

Salem and Andover were neighboring towns in Massachusetts, during the period of the infamous witch trials that are portrayed in The Crucible. Although the setting of the play is in Salem, the significance of Andover is that the people there revolted against the court, because they were tired of seeing so many of their townspeople falsely accused and hung. This rebellion was troubling news for the Salem judges, especially for Danforth. He and others feared that the people of Salem might be persuaded to follow those in Andover and throw over the court, thereby putting an end to the witch trials. More and more, the people in Salem were beginning to mistrust the court and blamed the witch trials for many of the bad things that were happening in the town. In Act 4, Reverend Hale returns to Salem with news of the revolt in Andover and he warns the officials that they too are courting a rebellion in Salem, by continuing to hold the witch trials which were based on lies and falsehood.

In the book Johnny Got His Gun, why does Joe like America?

Through flashbacks and soliloquies, Joe Bonham reflects on his life before, during, and after his involvement in World War I. In these flashbacks, we learn that Joe was an average boy living a pretty average life before he decided to join the military. He has memories of fishing with his best friend, when he first made love to his then-girlfriend, and even some tender moments of his mother's home-cooking.
These moments, alongside others, help us understand Joe as a patriotic young man who wants to join the military in order to serve his country. Here is where we first recognize his love for America.

Book 2 of the novel sees Joe recalling his experience in the war and how he is hit by an exploding shell, which causes him to lose his limbs. Here is when we begin to see his love for America wane.

However, it is much later in the novel where we finally see his love for America dissipate completely and become replaced with rage. When Joe is finally able to communicate with the nurses caring for him, he requests that he display his body for others to see so that they can see the ramifications of war and the pain that it causes; he wants his reality to serve as the reality of war versus the myths often propagated. Unfortunately, his request is denied and he is left to his silent anger as faceless military officials pin a military medal to him.