...Acceleration vs. Time * On the first graph, the man walks slowly to the house from the origin. On the Position-Time graph, the line is a positive consistent rise. This is because his position is going in a positive direction as well as the time is going in a consistent positive direction. On the Velocity-Time graph, the line is straight across at 2 m/s because the velocity does not change because of the consistent speed of the man walking to the house. Since the velocity is constant the acceleration is zero. On the Acceleration-Time graph, the line is flat and straight across at the 0 m/s line because the man does not accelerate. He just walks at a consistent pace to the house. This is called constant speed because there is no variation in his speed. * On the second example, the man is sleeping then wakes up and runs toward the house constantly speeding up as he goes. On the Position-Time graph, there is a positive upward curved line. This is because both are moving in a positive direction but because he is running, the position is rising faster than the time. This upward curve indicates an increase in velocity. On the Velocity-time graph, the line is a straight consistent rise. This is caused because the man is running so the velocity is rising throughout the graph, as is the position. A positive slope indicates a changing velocity which is a positive acceleration. On the Acceleration-Time graph, the line constantly rising because the man is running, constantly speeding...
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...Kinematics - Velocity and Acceleration Introduction: The purpose of this lab is to discover and understand the relationships between position, velocity, and acceleration. Additionally, constant/uniform acceleration due to the force of gravity will be examined to find possible mathematical relationships to position and velocity. Velocity and acceleration are changes in position and velocity, respectively, with regards to time. This change can be shown mathematically in calculus derivatives: EQ 1. EQ 2. As dt decreases in value, the instantaneous velocity and acceleration can also be found. Furthermore, if constant acceleration is established, two basic relations between distance, velocity, and the constant acceleration can be found: EQ 3. EQ 4. In any environment near Earth, the acceleration in the vertical direction is constant at a value of g=9.8m/s2 towards the center of Earth or often written as g=-9.8m/s2. In such an environment there is no natural acceleration in the horizontal direction, thus the horizontal motion is analyzed independently of the vertical motion. Thus it can be established that the general form of a position curve for a projectile would follow an inverse parabola shape and the maximum height occurs when vertical velocity is zero. By calculus derivation, it can also be found that the velocity graph would display a linear line with a negative slope. Procedure: This lab consists of two separate but related experiments, first...
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...Calculate the initial displacement. (c) Calculate the first time at which the particle is at x = 2.00 cm and x = - 2.00 cm. 3. (a) Calculate the length of a pendulum that has a period equal to 1.00s. (b) Calculate the percentage increase in the period of a pendulum when the length is increased by 4.00%. 4. The graph in the figure shows the variation with displacement x of the acceleration ‘a’ of the particle. (a) Explain how it may be deduced that the particle executes SHM. (b) Use the graph to determine the period of oscillations (c) The maximum speed of the body during oscillations. 5. The graph in the figure shows the displacement of a particle from a fixed equilibrium position. (a) Use the graph to determine: (i) the period of motion (ii) the maximum velocity of the particle during oscillation, and (iii) the maximum acceleration experienced by the particle. (b) On a copy of the diagram, mark (i) a point where the velocity is zero ( label this as Z) (ii) a point where the velocity is positive and has the largest magnitude ( label this as V) (iii) a point where the acceleration is positive and has the largest magnitude ( label this as A). 6. A body of mass m is placed on a horizontal plate that under goes vertical SHM The amplitude of SHM is A and the frequency is f. (a) Derive an expression for the reaction force on the particle from the plate when the particle is at its highest position. (b) Using the expression in...
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...the period of oscillation depended on the effective mass of the spring and the period of oscillation. Students recorded basic information such as the position of the mass before the spring is charged, the path of the mass, the peak of the oscillation, as well as the force the mass and the spring exert on each other. Data studio and a force sensor, and a position sensor was used to get accurate measurements of these values. Goal The purpose of this laboratory is to characterize the oscillation of a simple spring-mass system. Theory If a spring is stretched or compressed a small distance from its equilibrium position, the spring will exert a force on the body given by Hooke's Law, where is known as the spring force. The constant, , known as the spring constant, and is the displacement from the equilibrium position. The spring constant is a clue of the spring's strength. A large value for indicates that the spring is strong or stiff. A low value for means the spring is weak or flexible. Springs with large values can balance larger forces than springs with low values. The negative sign in indicates that the direction of is always opposite the direction of the displacement. The spring force is a restoring force. In other words, the spring force always acts to return the weight or body to the equilibrium position regardless of the direction of the...
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...GRAPHS AND EQUATIONS (Using Work and Kinetic Energy) Joanne Gambon, Cheska Santos, Kim Urbano, Anna Veluz Abstract The researchers are tasked to perform an experiment involving force, work, and Kinetic energy. To perform the experiment, the researchers used graphing software to record their graphs, a dynamic cart, a pulley, ramp and a set of weights. The researchers started with gathering the data by attaching the cart to a pulley that is attached to a weight holder. Different weights are attached to determine its effect on the cart. The researchers then analyzed and computed the remaining data to get their desired variables. The researchers also graphed the obtained values for force vs. work and kinetic energy vs. work to compare the data. I. Introduction A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force.[1] When a force acts upon an object to cause a displacement of the object, it is said that work was done upon the object. There are three key ingredients to work - force, displacement, and cause. In order for a force to qualify as having done work on an object, there must be a displacement and the force must cause the displacement.[2] Kinetic energy is the energy of motion. An object that has motion - whether it is vertical or horizontal...
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...constant and at a constant acceleration was observed. The purpose was to find the changes in position and velocity to determine a better understanding of velocity and acceleration of an object as time progresses. Thi slab was trying to find out how the data plotted will relate to velocity and acceleration on a position time graph, and how data plotted on a velocity time graph related to acceleration. In this lab, a cart was pushed down a track, as the cart was moving down the track, the time was taken, when it reached certain intervals, those times were then recorded. As a result of this lab, by finding the position and time, it equaled the velocity of the...
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...RGS 2014 Year 3 Physics Performance Task (A) Introduction This report is the analysis of the motion of a Slinky dropping. When a slinky is fully extended and then released, it can be seen that the top and bottom of the slinky act somewhat unusually and do not fall at an acceleration of 9.81 m/s. In order to understand this motion, a video tracking software has been used to track these two points of the slinky. This report focuses on the y-direction (vertical) movement of these points through two phases. Phase A to B is when the top of the slinky has yet to meet the bottom of the slinky. When the slinky is fully compressed, this is when phase B to C begins, and it ends when the slinky hits the floor. The aim of this report is to analyse these results, in order to explain the movement of the falling slinky. (B) Procedure In this experiment, a 21cm ruler has been used for a reference length for the video tracking software. For increased accuracy, a longer reference length should be used. The procedure, which should be recorded using a camera on a tripod stand, placed such that there is no perspective error, is as follows: 1. Hold slinky from the top most coil so that it is fully extended and does not touch the floor. (See Diagram B1) 2. When the slinky has settled and there is minimal movement, release the slinky. 3. Stop recording when the Slinky has come to a complete rest. The height that the Slinky is released from is unimportant, as the video tracking...
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...INTERNSHIP REPORT INTERNSHIP REPORT T R E N D A N A L YS I S OF G E N E R I C S H I F T I NG I N T H E B A NG L A DE S H PHARMACEUTICAL MARKET (2006-2010) EMPLOYEE ORGANIZATION: SQUARE PHARMACEUTICALS LTD BANGLADESH PREPARED BY Monamee Afroze Ishika ID: 07104021 BRAC Business School BRAC University PREPARED FOR Mr. Anup Chowdhury Assistant Professor BRAC Business School BRAC University DATE of SUBMISSION 8th December, 2010 Transmittal Message December 08, 2010 Mr. Anup Chowdhury Assistant Professor, BRAC Business School BRAC University Subject: Submission of Internship Report Dear Sir, With great pleasure I am submitting my Internship report on Trend Analysis of Generic Shifting in the Bangladesh Pharmaceutical Market (2006-2010). I got the opportunity to work at country’s leading pharmaceutical company, world reputed Square Pharmaceuticals Limited (SPL) and was placed under one of the most important departments in the company Product Management Department (PMD). I have found the experience to be quite interesting and under the guidance of my supervisors and with the help of all the members of the department I have tried my level best to prepare an effective report on the above mentioned topic. The report contains the trend analysis of generic shifting, the reasons behind it and future potentiality of certain generic shifting events and SPL’s planning in the present scenario. Here I have gathered data and information through actual...
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...Table of Contents Part 1: Graph 3 Regions, Force Diagrams, Description Correlation of Position, Velocity, and Acceleration Graphs Instructions to Recreate Graph 3 Analysis of Newton’s 3 Laws of Motion Part 2: Scenario C Graph, Force Diagrams, Regions Explanation of Graph Self-Assessment Summary Report on Motion PHS 100 Lab 552 26 March 2013 Region 1: The fan cart is at a constant position. As you can see, the fan cart is set at a constant position of 2.0 meters away from the motion detector. Velocity and acceleration are zero as the cart is not moving. Region 2: A change in motion is occurring. As the cart begins to move, the position of the cart moves closer to the detector. Velocity and acceleration are at a negative slope because the direction is changed from no movement to movement. Region 3: The fan cart is moving at a constant speed and direction towards the detector. Slope for velocity becomes positive as the speed is now greater than zero. Acceleration is constant. Region 4: The fan cart has now moved to a closer position to the motion detector. Velocity and Acceleration is at zero because there is no movement. Regions of Graph 3: Region 1- The fan cart is at a constant position as it is not moving. Since the position is just less than 2 meters away from the detector, we know the fan cart is not directly in front of the motion detector. There is no acceleration. Region 2- The fan cart begins to gradually...
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... Anup Chowdhury, Assistant Professor, BRAC Business School, BRAC University for my internship program. Though the topic for my project work was assigned by my onsite supervisor but it was duly approve by my academic supervisor. The project is to investigate the trend toward which doctors‟ preference for any genric under any therapeutic class is shifting to another one. The report will definitely increase the knowledge of the department about the changing trend and preference of doctors regarding any generic which might help the department to plan their marketing effort considering these facts to make the plans more effective. 1.2OBJECTIVE The broad objective of this report is to explore the trend of generic shifting over a particular time period (2006-June, 2010). The main focus is to analyze the shifting in preference of molecule by the whole pharmaceutical industry in Bangladesh and SPL‟s progress to cope up with the changing trend. TREND ANALYSIS OF GENERIC SHIFTING IN THE BANGLADESH PHARMACEUTICAL MARKET (2006-2010) Page 1...
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...protection * Ramp * 3-4 textbooks or wood blocks * Meter stick * Motion sensor * Laboratory cart Procedure: 1) Propped up one end of a ramp using textbooks or wood blocks. Used a meter stick to measure the length of the ramp (L) and the height of the ramp (H). 2) Placed the motion sensor at the top of the ramp, directed toward the bottom. Released the cart from a position near the motion sensor. Obtained the position time graph of the cart as it rolled down the ramp away from the motion sensor. 3) Chose one point on the position-time graph near the end of the run. The position coordinate for this point represented the final position d2 and the reference point that was used to determine the height of the cart. This point did not change throughout the experiment. 4) The ramp itself formed a larger triangle and the displacement of the cart down the ramp formed a smaller, similar triangle. Using the similar triangles, a formula is formed: (to calculate the height, h, of the cart on the ramp) 5) Determined the speed (v) at any point on the position time graph, by using the slope tool in the program for the motion sensor. Observations: Mass of cart- 0.8455 kg Height of ramp (H)- 0.1745 m Length of ramp (L)-...
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...ABSTRACT The purpose of the study was to detect the rates of hyphal tip growth and nuclei position of N. crassa in influence of drug medium, Taxol. The results of the experiments show that the rate of hyphal tip growth and nuclei position are much lower in drug medium than in the control. Taxol have different effect on growth of tip and distance travelled by nuclei. Moreover, the rate at which the nuclei displace and growth of the tips are dependent on the medium and not on each other. Thus, the results conclude that drug effected fungus affects the tip growth rate and nuclei displacement. INTRODUCTION The purpose of the experiment is to study the hyphal tip growth, and to observe the effects of a drug on the tip growth and the nuclei position of a fungal hyphae. The fungus used in the study is Neurospora crassa, a common red bread mold of Europe and America and was originally obtained from sugar-cane bagasse near New Orleans (Shear and Dodge 1927). It is a common model organism in biology, genetics, cell biology labs, and in research. Because it is quickly reproducing, is easy to culture and can survive on minimal media. Moreover, microtubules and actin are cytoskeletal filaments responsible for structural support for fungus tip, and help in replication of the cell. Actin filament helps tip to grow by polymerizing, so actin subunit comes together form branch-like structure at the tip is called hyphae (Rosenblum and Shivers 2000). The drug was used in this experiment...
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...equilibrium. F = - k r where F is a restoring force, k is a constant of proportionality and x is the distance the object has been displaced from its equilibrium position. The minus sign signifies that the restoring force acts in the opposite direction to the displacement of the body from the equilibrium position. So, we can translate this formula into: F= KsX * If a body, which obeys Hooke’s Law, is displaced from equilibrium and released, the body will undergo “simple harmonic motion”. From the experiment, we can get the T that is one oscillation of the spring, so we can get KT by: KT=4π2Mt/T2 Procedures Way One * Set up the apparatus as illustrated. * Place 200 grams on the spring and record the position of the bottom of the weight pan along the meter stick. * Repeat the step above by using 400 grams, 600 grams, 800 grams and 1000 grams, record the positions of all these masses. * Computer the force on the spring F by using the formula F= mg * Plot a graph of force, F VS Position, x using the values of F and x in the data chart and compute the slope the graph * Pick up any two points of the line, that is (x1 y1), (x2 y2). Computer the slope of graph: Slope = (y2- y1)/( x2- x1) that is also the spring constant KS in Hook`s law by using formula F=KSX Way Two * Place about 800 grams of mass on the spring and...
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...back of the book. Doing this throughout the book will help immensely in understanding how to apply the theory, and thereby develop your problem-solving skills. Fa2-1. Initially, the car travels along a straight road with a speed of 35 m/s. If the brakes are applied and the speed of the car is reduced to 10 m/s in 15 s, determine the constant deceleration of the car. F12-5. The position of the particle is given by s : Q? - 8/ + 6) m, where r is in seconds. Determine the time when the velocity of the particle is zero, and the total distance traveled by the particle when r : 3 s. ,t,t.tO F7Z-1 Fl2-5 Fa2-2. A ball is thrown vertically upward with a speed of l5 m/s. Determine the time of flight when it returns to its original position. Fl2-6. A particle travels along a straight line with an acceleration of ,, : (10 - 0.2s) m/s2, where s is measured in meters. Determine the velocity of the particle when s: lOmif u:5m/sats:0. 6 _s 1' F12-6 Ftz-z Fl2-7. A particle FI2-3. A particle travels along a straight line with a velocity of u : (U - 3h m/s, where r is in seconds. Determine the position of the particle when t : 4 s. s:0whent:0. F124. A particle travels along a straight : - line with a speed m/s, where r is in seconds. Determine the acceleration ofthe particle when t : 2 s. a Q.5f 8r) moves along a straight line such that its acceleration is d- @f - 2)mls2, where , is in seconds. When r...
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...standard length would be entered as 5 units. The force probe should then be calibrated quantitatively to measure any force within its range in terms of the spring units. 3. What is meant by a proportional relationship? Is this the same as a linear relationship? Explain. “proportional” means that the dependent variable is a constant multiple, either positive or negative, of the independent variable. “Linear”means that the dependent variable is a constant multiple of the independent variable plus or minus a constant offset. 4. Given the table of data below for widgets and doodads, how would you determine if the relationship between widgets and doodads is a proportional one? Sketch on the axes on the right of the table what the graph would look like if widgets are proportional to doodads. Divide the number of widgets by the number...
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