...According to the article Black holes first, galaxies second it has been found out that each galaxy has a black hole in the center (16). By observing motions of gas it had been suggested that early galaxies were 30 times as huge as central black holes. Therefore, it has been suggested that galaxies are formed around black holes (16). Doppler shifts show the black hole mass. Astronomers believe that both the hole and the galaxies can stop growing (16). As stated in Spinning Hearts of Darkness “Astronomers are measuring the rotation rates of black holes to determine their rotation and history” (Brenneman, 20). A black holes’ gravity is so strong that light can’t pass through it (20). As stated in the article Black holes are neither let in light or let it come out (Brenneman, 21). Black holes can be up to billions solar masses. Measuring a black holes spin is important because it can tell us about its history (22). Black holes that occur because of mergers with other black holes will grow slower than those that occur by accretion. As stated in Brenneman “Black holes occur at random angles which alter the spin direction and speed of resulting black hole”(22). Einstein’s general theory of relativity the black hole spins in the same direction as its rotation disk. The disks’s "Black Holes First, Galaxies Second." Sky & Telescope 117.5 (2009): 16. MasterFILE Elite. EBSCO. Web. 13 Oct. 2011. BRENNEMAN, LAURA. "Spinning Hearts of Darkness. (cover story)." Sky & Telescope...
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...(underneath) is to do with a paper plane and its mass and time of flight. Here is a chance to experiment with different masses of a paper plane to observe how it affects it’s time of flight. Research Question: How does the mass (g) of a paper plane affect the time (seconds) of its flight? Hypothesis: It is expected that, the more mass on the paper plane’s wings, the time of flight will decrease. This is because more mass; the faster gravity will pull it down. *Independent variable: Number of paperclips (amount of mass in grams) Dependent variable: The time of flight –measured in seconds. X Controlled variables: Throw it with the same force in each throw, and same angle of the throw. Materials: Stop watch 3 pieces of A4 paper to make paper planes 1 balance 12 paperclips Method: Make 3 ordinary paper planes from A4 sheet of paper Find someone who is willing to throw the paper plane for all the trials in the experiment. Take the paper plane and weigh it using the balance (weighing scale), to note down its mass. Find an open space for the plane to fly freely and take your planes there. Throw 1 paper plane from shoulder level and start the stop watch at the same time of the throw. Stop the stop watch the moment when the plane touches the ground. Record your data and repeat steps 4-6 four more times. For the second trial, add 1 paperclip to each wing and weigh the plane before testing the throw and note down the mass. ( see diagram below) Throw the plane...
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...Universal Gravitation Objectives * Compare and contrast gravitational force vectors as mass and distance are changed. (Explorations 1, 2, and 3) * Discover how changes in the distance between two objects affects the gravitational force between them. (Explorations 1, 2, and 3) * Describe how changes in the masses of two objects affects the gravitational force between them. (Explorations 1, 2, and 3) Description of Activity In this activity, you will explore how distance and mass affect the gravitational force between two objects. You will select one of three locations to work within: a 9 m2 room, a 9 × 104 m2 city block, or a 9 × 1022 m2 region of space. You will also change the mass of each object as well as manipulate the positions of both objects. For purposes of this simulation, masses will be represented as spheres and the distance between them will be the distance between their centers. Jump Start 1. What is mass? Mass is the amount of matter an object has. 2. Describe gravitational force. Gravitational force is the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface. 3. How can you tell if one variable is directly proportional to another variable? Two variables are said to be directly proportional if an increase or decrease in one variable causes simultaneous increase or decrease in another variable. 4. How can you tell if one variable is inversely...
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...Some of the possible reasons caseworkers were not aware of the conditions in the Jackson home is maybe since the kids were home schooled nobody really paid attention to the four kids. It fell upon a neighbor’s call when she saw the oldest son digging through the garbage for something to eat, because he was hungry from being undernourished from the Jackson family. From the information provided I think justice was served by firing the nine members of the Division of Youth and Family Services staff. If they had been doing their job it shouldn’t have taken a call from neighbor, the kids should have been long gone from the Jackson home. What touches me the most is the total weight of all four children was 136 pounds with the oldest Bruce weighing in at a eye-popping 45 pounds. Justice was served in this case, they were lucky to be informed by the neighbor in time or the children might not have made through their tuff situation. I think the whole situation should have been avoided when the first caseworker came out to the house to check on the children, because we all know that these kids have not been eating for quite some time. It said in the study that the Jackson family said that the adapted kids had an eating disorder maybe the caseworker should have found out for themselves by taking the kids out for a little while and seeing first hand if they wanted something to eat or not. If they didn’t want anything to eat then they should have been treated for an eating...
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...This Story of Mine It all started when I was in eighth grade weighing 120 pounds and four feet nine inches tall. During my eighth grade year, I dated a guy who was skinny to the bones. He had no fat nor did he have muscles; he was pretty much a stick. On the other hand, I had a chubby round face with wide fat hips; and let’s just say, a bunch of fat hanging in between. I always thought to myself that I wanted to be skinny so I’ll look good standing next to him. He always told me that I was fat and I would look prettier if I was skinny. I starting thinking and finally came to a conclusion. That was, to break up with him and I did; I was a lot happier, stronger, and more confident. But from then on, I kept his words. For someone who didn’t love me for who I truly was, I decided to transform myself into a different person. Later on, I realized that not only is appearance what matters, but it’s what’s inside that matters the most. When summer began, I started working out every single day and night; I pushed myself really hard for I wanted to look pretty faster. Then, my hard work finally paid off! I lost 20 pounds at the end of my freshman year and weighed 100 pounds with the height of five feet two inches. I was anorexic for three years and never went bulimic; however, I had always thought of becoming bulimic but I was too scared of the causes. I started starving myself, eating less than one meal a day, and drank Special K’s protein drinks. I also exercised every day during the...
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...THE STABILITY OF A FLOATING BODY Objective: The objectives of the experiment was to determine the metacentric height of a floating body and the position of stability of a pontoon. Introduction: The question of the stability of a body such as a ship, which floats in the surface of a liquid is one of the obvious importance. Whether the equilibrium is stable, neutral or unstable is determined by the height of its center of gravity, and in this experiment, the stability of a pontoon may be determined with its centre of gravity at various heights. Apparatus: Pontoon, water tank , an adjustable weight, small magnetic weights and a plumbline. a) jockey weight Plumbline Method: Theory: - metacentric height, GM = [pic] where W = total weight of the floating assembly (i.e., weight of pontoon and the applied weights). Wi = adjustable weight Sx = distance moved of adjustable weight from central position St = angle of tilt. Let the angle of tilt, corresponding to a small displacement Sx, from the central position (i.e., from the plumbline) be st. the whole system tilts from the original position by this angle. For one chosen height of the adjustable weight, the height of the centre of gravity of the whole floating assembly from its base OG, was measured: The pontoon was suspended from a hole at one side of the soil. The jockey weight was positioned on the line of symmetry such that the pontoon hung with...
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...Associate Level Material Appendix D Goal Evaluation Matrix Choose five of the scenarios in Appendix C and evaluate the goals according to the SMART criteria. Provide support for your evaluation. Goal setter and goal | SIs the goal specific? | MIs the goal measurable? | AIs the goal attainable? | RIs the goal realistic? | TIs the goal timely? | Example:Nikki:She hopes to obtain a different position in her company in 1 to 2 months. | YesShe would like to find another job in her company. | YesShe will know if she meets her milestones of applying for jobs and preparing for interviews. | YesShe already works for the company, so it is possible she can move to a new position. | YesMoving to a new job in a company is easier than finding a job with a new company. | No1 to 2 months is not much time to find another job. | Scenario 2:Jie has always been underweight and wants to improve her health and stamina by gaining 5 pounds | YesTo gain 5 pounds in 1 month in a healthy way. | YesShe will go from underweight to normal weigh to become healthier. | YesWith proper diet and exercise. | Yes Yes she plans to gain 1.5 pounds per week so that would total 6 pounds in a month | YesShe can definitely gain 5 pounds in one month. | Scenario 3:Lawrence hopes to buy a second car for his family. | YesSave enough money for a car. | YesIf he can stick to saving the amount of money he has planned to save. | YesHe has a plan to pay off the car. | No He has a lot of other expenses...
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...Every day individuals encounter life experiences not realizing the scientific nature of physics being involved. Physics exists all around weather one is cognizant or not. For example, roller coasters have become quite the attraction at major theme parks all across the globe and operate due to physics. Many men, women, boys and girls want to experience the thrill of zero gravity, upside down loops, twists and curls at extremely fast speeds. However, there is another portion of the population who does not want to go anywhere and would rather speculate from the ground. In either instance, the detailed study of physical science makes it all possible. Even though the physics of a roller coaster are intricate due to the composition of various forms of energy, accelerometers and gravitational forces; their makeup can be quite intriguing. The study of physics dates back several years and can be attributed to different individuals. Knowing the history of physics will help understand general concepts and how they can be applied to creating objects such as the roller coaster. The lessons initiated from the historical founders of physics are vitally important to apprehend the ideas of today and more importantly the direction for how they will shape tomorrow (Garcia et al., 2010). Copernicus, a prominent attributer, initially suggested that the planets revolve around the sun and the Earth rotates on an axis (Britannica Biographies, 2011). The idea will later assist Galileo, another...
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...#2 The Study of Concurrent Forces with the Force Table Apparatus: Force table with 4 pulleys, centering ring and string, 50 g weight hangers, slotted weights, protractors, and rulers. Discussion: The force table is designed to help you study the properties of forces at known angles. Only when forces are along the same line do they add by ordinary algebra. If two or more forces on the same body form angles with each other, it is necessary to use geometry to find the amount and direction of their combined effect. Prior to Lab: Complete the calculations in the following. The component method of adding vectors is given here for three sample forces as follows: A = 2.45 N @ 40o B = 3.92 N @ 165o C = 3.43 N @ 330o Overview of the component method of vector addition. First make a neat drawing, not necessarily to exact scale, but reasonably accurate as to sizes and angles, placing the three forces on a diagram with a pair of x and y axes. Find the angle of each force with the x-axis. This angle is called the reference angle, and is the one used to calculate sines and cosines. Next compute the x- and y-components of the three forces, placing like components in columns. Place plus or minus signs on the various quantities according to whether an x-component is to the right or left of the origin, or whether a y-component is up or down relative to the origin. Add the columns with regard to sign (subtracting the minus quantities), and place the correct sign on each sum. The resulting quantities...
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...ENTRY OF GOODS 2. Entry Process When a shipment reaches the United States, the importer of record (i.e., the owner, purchaser, or licensed customs broker designated by the owner, purchaser, or consignee) will file entry documents for the goods with the port director at the goods' port of entry. Imported goods are not legally entered until after the shipment has arrived within the port of entry, delivery of the merchandise has been authorized by CBP, and estimated duties have been paid. It is the importer of record's responsibility to arrange for examination and release of the goods. Pursuant to 19 U.S.C. 1484, the importer of record must use reasonable care in making entry. NOTE : In addition to contacting CBP, importers should contact other agencies when questions arise about particular commodities. For example, questions about products regulated by the Food and Drug Administration should be forwarded to the nearest FDA district office (check local phone book under U.S. government listings) or to the Import Division, FDA Headquarters, 301.443.6553. The sa me is true for alcohol, tobacco, firearms, wildlife products (furs, skins, shells), motor vehicles, and other products and merchandise regulated by the other federal agencies for which CBP enforces entry laws. Appropriate agencies are identified on page 197. Addresses and phone numbers for these agencies are listed in the appendix. Goods may be entered for consumption, entered for warehouse...
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...one: a. 1 hour b. 96.56 seconds c. 68 seconds d. Cannot calculate Question 3 Not complete Marked out of 1.00 Flag question Question text If an object with mass 10 Kg is moving at a velocity of 50 m/s west and collides with a stationary object with mass 10 Kg - after the collision the the first object comes to a complete stop (0 m/s) and the second object will move west at a velocity of ... Select one: a. 50 m/s b. 100 m/s c. 25 m/s d. 0 m/s - come to a stop Question 4 Not complete Marked out of 1.00 Flag question Question text F = ma implies Select one or more: a. Force field is equal to magnetism and amplitude b. Force needed to move a mass 'm' to an acceleration of 'a' is calculated by the product of m and a. c. Falling speed is equal to mass time amplitude d. If a force of F is applied to a mass m, the mass will experience a acceleration Question 5 Not complete Marked out of 1.00 Flag question Question text What is the magnitude of force in newton that should be applied to make an object of mass 1000 grams move at 10 m/s2 (s2 is s-squared) Select one: a. 10000 Newtons b. 1 Newton c. 10 Newtons d. 100 Newtons Question 6 Not complete Marked out of 1.00 Flag question Question text If rocket produces force of 1000 Newton to push up and the rocket has a mass of 100 Kg, what will be acceleration achieved by the...
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...IBM® Sterling B2B Integrator Map Editor INPUT Branching Diagram C:\Users\tmpdbohrer\Documents\IBM\Customers\Varroc Lighting\vTrac_AUD_APP_CMMS_CIF_856_OB.map.map Input Standards Association Agency : Version : Transaction Set : Release : Functional Group : INPUT* Group* 856HD* 856A* Temp* M C C C C 1 0 0 0 0 1 9999 1 1 1 Output Standards Association Agency : Version : Transaction Set : Release : Functional Group : Routing Header Primary Control Record Wed Oct 31 22:41:04 2012 Page 1 IBM® Sterling B2B Integrator Map Editor OUTPUT Branching Diagram C:\Users\tmpdbohrer\Documents\IBM\Customers\Varroc Lighting\vTrac_AUD_APP_CMMS_CIF_856_OB.map.map OUTPUT* APP_REC_HDR* M C 1 0 1 9999 Wed Oct 31 22:41:04 2012 Page 2 IBM® Sterling B2B Integrator Map Editor INPUT Record Details C:\Users\tmpdbohrer\Documents\IBM\Customers\Varroc Lighting\vTrac_AUD_APP_CMMS_CIF_856_OB.map.map Record 856HD* Routing Header HD1* HD2* HD3* HD4* HD5* HD6* HD7* HD8* HD9* HD10* Tag 856HD at 1 Header Version Number Data Version Number Trans Control Number Sender's Location Code Receiver's Location Code Delimiter Receiver's Location Code 2 Delimiter Receiver's Location Code 3 Final Delimiter Conditional C C C C C C C C C C 0 0 0 0 0 0 0 0 0 0 2 2 16 5 5 1 5 1 5 1 String String String String String String String String String String X X X X X X X X X X 0 1 6 8 10 26 31 36 37 42 43 48 2 2 16 5 5 1 5 1 5 1 Left Left Left Left Left Left Left Left Left Left Record 856A* Primary...
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...2/20/13 Sample Calculations Results The magnitudes of the masses for the gliders before the collision were: mass XA1 is equal to 0.107m, and mass XB1 is equal to 0.101m. The magnitudes after the collision of the masses were: mass XA2 equal to 0.0890m, and mass XB2 equal to 0.0820m. The momentum of the masses before collision were: mass PA1 equal to 0.3737 (kg m/s), and mass PB1 equal to 0.3551(kg m/s). The momentum after collision of the masses were: PA2 equal to 0.3109 (kg m/s), and mass PB2 equal to 0.2886 (kg m/s). When considering the direction of the vectors the area of uncertainty is small when considering the area of both parallelograms of uncertainty, because the overlapping of the parallelograms is only a small portion of each. The momentum was partially conserved within the error range of the parallelograms, or the portion where they overlap. Conclusions 1. It is necessary that they glide on a cushion of air, so that they can avoid any friction which would slow down their movement and could possibly keep them from colliding. The friction would differ for each mass, and would change all the predicted values. If the masses were not on an air cushion, it is impossible to predict that the two masses would ever collide because of the differing frictions for each mass. 2.If the masses were doubled, the before and after collision velocities would both decrease by a factor of two. Because the gliders would take double the...
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...Title: To determine the coefficient of static friction between two surfaces Objective: To investigate the relationship between the mass of load and the length of spring and the coefficient of static friction between two surface. Part 1: The relationship between the mass of load and the length of spring Apparatus and materials: Retort stand, spring, Slotted masses 200g with hanger, Meter rule Setup: Procedure: 1. One of the end of the spring is hooked on the retort stand. 2. The hanger with a 20g slotted mass is hang at the other end of the spring. 3. The length l1 of the spring has been measured, mass m1 of the load are recorded. 4. The mass m1 is increase and corresponding length l1 of the spring has been measured. 5. Data of l1 and m1 is tabulated. 6. Graph of l1 against m1is plotted. Part 2: The coefficient of friction between two surfaces Apparatus and Materials: smooth plank as inclined plane, Retort stand, wooden blocks, Electronic balance, spring, Protractor, Pendulum bob, Thread, Plasticine. Setup: Theory: If the wooden block is being displaced down the inclined plane, the block will return to its original position when released because the net force up the plane exceeds the limiting friction down the plane. The downward displacement is being reduced gradually until a stage where the block stays stationary when released. At this point, the force up the plane equalized the limiting friction down the plane. If T is the...
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...Da Na Na Na Na Na Na... BATMAN! December 8th, 2010 THE DARK KNIGHT: 180 DEGREE TRUCK FLIP The seventh highest-grossing film of all time was released in 2008 in which Christopher Nolen directed a masterpiece which was nominated for eight academy awards. In the city of Gotham, the Joker is the most prominent antagonist which must be stopped by Batman in the most recently released movie about the superhero, The Dark Knight. This movie was a sequel to Batman Begins which was released in 2005. This research paper applies a broad range of physics topics to a single scene; namely the different forces in effect in this scene, action and reaction and their effects in collisions, acceleration and its role in assessing the overall plausibility of the scene, as well as different forms of energy illustrated within the scene such as kinetic and potential energy. The particular scene that will be used in order to convey all of the above ideas is just over half way into the movie (1 hour and 18 minutes in). Filmed in downtown Chicago, Batman latches a cable onto the front of a semi truck being driven by the Joker. Batman then rides his bike swerving through numerous light posts. When the cable inevitably runs out and is knotted through numerous light posts as well as other things, the truck has nowhere to go which then causes the cab end of the truck to stop, while the trailer of the truck flips up and over the cab. This scene can be found by searching “Batman truck flip” on Youtube...
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