...Describe what you see in this simple sun-planet system. Specifically, what happens to the central object (the Sun)? Answer: The sun moves too. Can you explain why the central object moves? Answer: The Sun is pulled by the gravitational forces between itself and the planet. HINT: Is gravitational attraction only the sun pulling on the planet? Does the planet orbit in a perfect circle? Is the sun at the center? Answer: The planet orbits in an elliptical. No, the Sun is in focus off to the side. II Click Stop and then select 3 bodies. Then Start Sketch a complete cycle (orbit) Sketch: Watch the ‘funny’ object closely What is it doing? Describe and explain. Answer: The moon orbits the planet that is also orbiting the sun. Could this be the Earth/Moon/Sun system? (Try un-checking Show Traces.) Answer: Yes, but taking a look at the relative masses, this makes a significant difference. Is there anything you are uncomfortable with in the simulation? Explain. Answer: The planet does not move back and forth in response to its moon. Can you explain the difference in the moon’s path when it is on the right side of the Sun compared to on the left side? (Turn Traces back on.) Answer: The end points are sharper on the left and the end points are more curved on the right side because the speed of the planet increases when it is closer to the Sun, from Kelper’s 2nd Law. III Click Stop and then select 4 bodies. Then Start ...
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... Describe what you see in this simple sun-planet system. Specifically, what happens to the central object (the Sun)? Can you explain why the central object moves? HINT: Is gravitational attraction only the sun pulling on the planet? Does the planet orbit in a perfect circle? Is the sun at the center? In the simplest sun-planet system the Sun has a much larger mass (20X) than the planet. The planet is orbiting around the Sun in an elliptical orbit. The reason for this elliptical orbit is because gravity force of the bodies is acting on each other. The Sun's gravity keeps the planet from traveling off into space, and the planet's gravity acts on the much more massive sun causing it to have its own circular path instead of being just a stationary point. Mathematically, the force of gravity can be expressed as Force= G*(ml*m2/rA2), where G is the gravitational constant, ml is the mass of one object, m2 is the mass of a second object, and r is the distant between the two objects. II Click Stop and then select 3 bodies. Then Start Sketch a complete cycle (orbit) Watch the ‘funny’ object closely What is it doing? Describe and explain. Could this be the Earth/Moon/Sun system? (Try un-checking Show Traces.) Is there anything you are uncomfortable with in the simulation? Explain. Can you explain the difference in the moon’s path when it is on the right side of the Sun compared to on the left side? (Turn Traces back...
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...see in this simple sun-planet system. Specifically, what happens to the central object (the Sun)? Can you explain why the central object moves? HINT: Is gravitational attraction only the sun pulling on the planet? Does the planet orbit in a perfect circle? Is the sun at the center? Solution: Running the simulation we get the paths of the two body system as shown in the above figure. The central Object (The Sun) also moves along a closed path resembling a small ellipse. The motion of the central object must be attributed to the gravitational force acting on it by the smaller object causing smaller centripetal acceleration. No, the planet doesn’t move in a perfect circle. No, the sun is not at the center of a circular path. 2. Click Stop and then select 3 bodies. Then Start. Sketch a complete cycle (orbit). Watch the ‘funny’ object closely. What is it doing? Describe and explain. Could this be the Earth/Moon/Sun system? (Try un-checking Show Traces.) Is there anything you are uncomfortable with in the simulation? Explain. Can you explain the difference in the moon’s path when it is on the right side of the Sun compared to on the left side? (Turn Traces back on.) Solution: The smallest object which is behaving as a satellite to the second object appears to behave funny. But, it’s orbiting the planet which is orbiting the central body, that is, the sun. The relative masses of the three bodies in the simulation don’t match the actual sun-earth-moon system...
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...see in this simple sun-planet system. Specifically, what happens to the central object (the Sun)? The sun begins to move Can you explain why the central object moves? HINT: Is gravitational attraction only the star pulling on the planet? Gravitational forces between it and the planet are pulling it. Does the planet orbit in a perfect circle? Is the sun at the center? It orbits in an elliptical and the sun is off to the side. Why don’t the objects move in a straight line as described in Newton’s first law? II Make it so Set the “Position x” of body 2 to be a value between 30 and 300 and move the “Accurate/Fast” bar to the far left. Through trial and error experimentation, determine the minimum initial speed (Velocity y) that will allow body 2 to get around the sun (rather than crashing into it). You must click the reset button to change the velocity each time. Record that minimum speed and the position you chose in the box below. minimum speed = position = Click reset and then set the “Position x” of body 2 to a value between 30 and 300 (your choice!). This will be the radius r, of your circular orbit. Through trial and error experimentation, determine the initial speed (Velocity y) that will allow the planet to sustain a circular orbit at your chosen r. You will find the tape measure useful here. Place the tape measure at the starting point of the planet. Now click the “free” end of the tape and stretch it horizontally through the sun so that the end of...
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...BECAUSE U COULD NOT STOP FOR DEATH BY EMILY DICKINSON…. Type of Work “Because I Could Not Stop for Death” is a lyric poem on the theme of death. The contains six stanzas, each with four lines. A four-line stanza is called a quatrain. The poem was first published in 1890 in Poems, Series 1, a collection of Miss Dickinson's poems that was edited by two of her friends, Mabel Loomis Todd and Thomas Wentworth Higginson. The editors titled the poem "Chariot." Commentary and Theme “Because I Could Not Stop for Death” reveals Emily Dickinson’s calm acceptance of death. It is surprising that she presents the experience as being no more frightening than receiving a gentleman caller—in this case, her fiancé (Death personified). The journey to the grave begins in Stanza 1, when Death comes calling in a carriage in which Immortality is also a passenger. As the trip continues in Stanza 2, the carriage trundles along at an easy, unhurried pace, perhaps suggesting that death has arrived in the form of a disease or debility that takes its time to kill. Then, in Stanza 3, the author appears to review the stages of her life: childhood (the recess scene), maturity (the ripe, hence, “gazing” grain), and the descent into death (the setting sun)–as she passes to the other side. There, she experiences a chill because she is not warmly dressed. In fact, her garments are more appropriate for a wedding, representing a new beginning, than for a funeral, representing an end. Her description of the grave...
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...Chorus: Let's go crazy, crazy, crazy till we see the sun I know we only met but let's pretend it's love And never, never, never stop for anyone Tonight let's get some And live while we're young Oh oh oh oh Oh oh oh oh And live while we're young Woahhh oh oh oh Tonight let's get some Harry Styles: And live while we're young Zayn Malik: Hey girl, it's now or never, it's now or never Don't over-think, just let it go And if we get together, yeah, get together Don't let the pictures leave your phone, ohhhh Niall Horan: Yeah, we'll be doing what we do Just pretending that we're cool So tonight Chorus: Let's go crazy, crazy, crazy till we see the sun I know we only met but let's pretend it's love And never, never, never stop for anyone Tonight let's get some And live while we're young Woahhh oh oh oh Woahhhh oh oh oh And live while we're young Woahhh oh oh oh Tonight let's get some Harry Styles: And live while we're young Zayn Malik: And girl, you and I, We're 'bout to make some memories tonight Louis Tomlinson: I wanna live while we're young We wanna live while we're young Chorus: Let's go crazy, crazy, crazy till we see the sun I know we only met but let's pretend it's love And never, never, never stop for anyone Tonight let's get some And live while we're young Crazy, crazy, crazy till we see the sun I know we only met but let's pretend it's love And never, never, never stop for anyone Tonight let's get some And live while...
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...Andrea Thomas A Raisin in the Sun was an awesome book about many things, it was about a black family struggling with economic hardship and racial prejudice, this play showed the importance of family, the value of dreams, and about racial discrimination. The I have a dream speech by Martin Luther King Jr. is known as one of the best speeches ever given, the key message in the speech is that all people were created equal. His speech demanding racial justice and an integrated society became an expression for the black community. I have a dream speech and A Raisin in the Sun both talk about pride. “In the process of gaining our rightful place we must not be guilty of wrongful deeds. Let us not seek to satisfy our thirst for freedom by drinking from the cup of bitterness and hatred” I think Dr. martin Luther king means that even though freedom is what and people might do whatever to be free, don’t lost pride in yourself and don’t stop pushing even with all the hate. A Raisin in the Sun “I’m going to look that son-of-a-bitch in the eyes and say all right Mr. Linder that’s your neighborhood out there! You got the right to keep it like you want! You just write the check and the house is yours, you people just put the money in my hand and won’t have to live next to a bunch of stinking niggers”. I think for a minute Walter lost his pride, the fact that he was about to give Mr. Linder exactly what he wanted, which was for the youngers not to move in the white neighborhood but when Mr...
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...death in the poem “Because I could not stop for Death” Emily Dickinson’s poem “Because I could not stop for Death” shows how the speaker is unfearful towards death. The poem consists of twenty-four lines, and six stanzas. She outlines how the death in the poem was in three stages: the car ride, the scenes, and the home. This is significant because the speaker shows the slow progression of her death and how it relates to an outline of her life. Emily Dickinson’s poem “Because I could not stop for Death” shows her feelings of calmness and un-fearfulness towards death. The car ride symbolizes the beginning of the speaker’s death, and is the first setting of the poem. The death was announced in a carriage. “He...
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...could not stop for Death”. The poem was written by Emily Dickinson in 1863. There are 3 points in the poem that I want to point out and explain further in detail. The three things this poem has rhythm, imagery, and flashback. I want to start by talking about the rhythm in the poem. First I will start by explain what rhythm is? Rhythm is the structure and movement of the poem. This poem has great rhythm. She starts this poem out by saying in the first 2 lines what she wants. It says “Because I could not stop death- He kindly stopped for me-”. It goes on from there explaining that they are in a carriage. They drive slowly and they see different points in her life and moments that seem to mean a lot to her and they continue to a house that seemed to be as the poem says “A swelling of the ground”. Finally at the end of the poem, she surmised the horses head and they were toward eternity. The poem really makes you feel like you’re there by using great imagery. Imagery is the use of vivid or figurative language to represent objects, actions, or ideas. The poem “Because I could not stop death” had great imagery. She says that they were in a carriage and that they slowly drove. Reading those words just gives you an image of a carriage rolling down a dirt road traveling slowly. It goes on to talk about a school full of children at recess which makes you imagine kids running around and playing during recess. It goes on to talk about fields of grazing grain and a setting sun. That makes...
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...In The poem “Because I could not stop for Death“ by Emily Dickinson, the speaker tells of her journey with Death and Immortality. Death is portrayed as a gentleman suitor. This gentleman stops to pick up the speaker and take her for a leisurely and relaxing ride in a horse-drawn carriage. The speaker is comfortable with Death, she is not afraid nor does she beg for more time as they pass through the town where she has lived her life. Along the way she see children playing, fields of grain and the setting sun. It is a peaceful ride. The speaker describes Death as civil as he travels with her towards eternity. Although the speaker in the poem could not stop for death on her own and the poem is about the speaker’s own death, she is not fearful or hesitant to follow Death to her resting place and then on to eternity. In her poem, “Because I could not stop for Death” Emily Dickinson uses personification, imagery, and symbolism to tell of a woman’s peaceful journey from life to death and then to eternity. In this poem the first literary element that Emily Dickinson uses is personification. She personifies death as a male gentleman who comes calling on the speaker. Death is described as being kind as well as having civility and patients. Death is introduced in the poem right at the start. The speaker says, “He kindly stopped for me” (Dickinson, 1863, line 2). He does this because she was unable to stop for him. He then takes her on a slow drive through the town where she lives. The...
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...and fuse, creating progressively heavier elements. (Hydrogen => Helium => Carbon). - If the star has about 8x the suns mass, it can create temp in excess of 5x10^8°C causing carbon to fuse. - Carbon the fuses into Ne, Mg and Na. Once the core heats up to around 1x10^9°C, Ne will fuse creating more Mg and some O. These elements build up and when the core reaches about 1.5x10^9°C, Oxygen fuses, creating Si. The core heats to around 2-3x10^9°C and Si fuses. As well as some other elements, Si fusion creates Fe. - Because the star was born massive, it spent the time whilst...
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...Human Sacrifice; A Religious Right “Then God said, 'Take your son, your only son, Isaac, whom you love, and go to the region of Moriah. Sacrifice him there as a burnt offering on one of the mountains I will tell you about.'" (Genesis 22:1-2). When one thinks of human sacrifice as in relation to religion, the most often-cited example is the story of Abraham and Isaac. Abraham is asked by god to sacrifice his son, Isaac, to him. To prove his faith, Abraham attempts to. God only stops him at the last moment, impressed by Abraham’s show of devotion. Religion is something that is practiced solely out of faith. To have faith is to believe in what cannot be seen or heard, what cannot be held; a belief that is not based on proof. The bible describes the Christian god as more of a present being, but to the Aztec, their gods were spiritual. Abraham had the voice of god to tell him that sacrifice was not what he truly wished but what if there was no presence there to stop him? For the Aztec there were no voices. They had developed the idea that their purpose on earth was to appease the gods for all that they had given them, and that is life. That being said, the most logical way to repay them for the life they had given is to give it back, bringing the Aztec upon human sacrifice. The number of lives taken by their people is unknown, however what is known, is that the number is much larger would care to believe. The Aztec, as Abraham had prepared himself to do, sacrificed themselves out...
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...body starts to collapse under its own gravity, and the temperature inside rises. After the temperature reaches several thousand degrees, the hydrogen molecules are ionized (electrons are stripped from them), and they become single protons. The contraction of the gas and the rise in temperature continue until the temperature of the star reaches about 10,000,000 degrees Celsius (18,000,000 degrees Fahrenheit). At this point, nuclear fusion occurs in a process called proton-proton reaction. Briefly, proton-proton reaction is when four protons join together and two are converted into neutrons; an 4He nucleus is formed. During this process, some matter is lost and converted to energy as dictated by Einstein's equation. At this point, the star stops collapsing because the outward force of heat balances the gravity. The Hydrogen Burning Stage The proton-proton reaction occurs during a period called the hydrogen-burning state, and its length depends on the star's weight. In heavy stars, the great amount of weight puts a large amount of pressure on the core, raising the temperature and speeding up the fusion process. These heavy stars are very bright, but only live for a short amount of time. After the energy from this deuteron-hydrogen fusion process ends, the star begins to contract again, and the temperature and pressure subsequently increase. Nuclear fusion occurs between the hydrogen and lithium & other light metals in the star, but this process soon ends. Contraction starts...
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...Tanning Beds or Death Beds? Since tanning beds became a sensational hit in the 1990s, their use has evolved in various ways. The idea of getting into a metal bed to change the complexion of your skin seems harmless. It’s cheap, relaxing, and it saves you the hustle of going out in the sun. But after all these years, the question comes into mind; are tanning beds truly harmless? To answer this question, we have to go back in time, back to the 1900s when people were struggling to find a way to combat vitamin D deficiencies. This paved the way for the indoor tanning industry, which was started in 1906 by Heraeus, a German innovative medical company. Heraeus created UV tanning lamps that were beneficial especially to those with bone diseases such as Rickets, which is caused by a vitamin D deficiency. But what made the tanning bed business boom was when French celebrities like Coco Chanel and Josephine Baker displayed natural looking sun-kissed skin. However, what if a person wanted their body to evenly receive vitamin D and have sun-kissed skin all at the same time? This is where Friedrich Wolff, a German scientist, in 1978, decided to take this artificial sun one step further. Wolff was experimenting...
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...offices across Malaysia. They generate together synergies to Sunway’s core businesses and remain as important contributors to the Group’s bottom line. (Sunway.com.my, 2008). The founder of Sunway Group is Tan Sri Dr. Jeffrey Cheah. He is currently the Chairman and sits on the board of the Federation of Public Listed Companies, The National Kidney Foundation, The Board of Trustees of the Malaysian Liver Foundation and the Malaysian Business Council. As of today, Sunway maintains property development and construction as its two core businesses and key contributors to profitability (Quazoo, 2009). Date: Saturday 28 June 2014 Place: Sunway Pyramid Public relation activity: Publicity Event : Stop Hunger Now 2.0 Publicity Figure 2 : Multiracial teamwork of Sunway Staff in Stop Hunger Now (The Star Online,...
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