EXPERIMENT 2 Measurement of g: Use of a simple pendulum OBJECTIVE: To measure the acceleration due to gravity using a simple pendulum. Textbook reference: pp10-15 INTRODUCTION: Many things in nature wiggle in a periodic fashion. That is‚ they vibrate. One such example is a simple pendulum. If we suspend a mass at the end of a piece of string‚ we have a simple pendulum. Here‚ the to and fro motion represents a periodic motion used in times past to control the motion of grandfather and cuckoo
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average acceleration during this time interval? a. northeast b. northwest c. west d. north of west 3. A baseball is thrown by the center fielder (from shoulder level) to home plate where it is caught (on the fly at shoulder level) by the catcher. At what point is the magnitude of the acceleration at a minimum? (air resistance is negligible) a. just after leaving the center fielder’s hand b. just before arriving at the catcher’s mitt c. at the top of the trajectory d. acceleration is
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centrifugation schemes. The rate of centrifugation is specified by the angular velocity measured in revolutions per minute (RPM)‚ or acceleration expressed as g. The conversion factor between RPM and g depends on the radius of the sample in the centrifuge rotor. The particles’ settling velocity in centrifugation is a function of their size and shape‚ centrifugal acceleration‚ the volume fraction of solids present‚ the density difference between the particle and the liquid‚ and the viscosity. The smaller
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Newton’s Law of Universal Gravitation Isaac Newton compared the acceleration of the moon to the acceleration of objects on earth. Believing that gravitational forces were responsible for each‚ Newton was able to draw an important conclusion about the dependence of gravity upon distance. This comparison led him to conclude that the force of gravitational attraction between the Earth and other objects is inversely proportional to the distance separating the earth’s center from the object’s center
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a body‚ the body accelerates in the direction of the force. F = ma where‚ m = mass of the body a = acceleration due to F Unit : N = Newton = kg • m / s 2 Acceleration depends upon the force producing it‚ as well as on the mass of the body upon which the force has been applied. It is proportional to the force but inversely proportional to the mass. Force and mass are not dependent on acceleration. motion between the two surfaces. Kinetic friction is constant while static friction increases in
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“Biomechanics of a Lacrosse Shot” Lacrosse is defined as a ball game invented by American Indians‚ now played by two teams who try to propel a ball into each other’s goal by means of long-handled hooked sticks that are loosely strung with a kind of netted pouch (Farlex‚ Inc.). Behind every shot taken in a lacrosse game‚ elements of biomechanics are implemented. Biomechanics is the “sport science” field that applies the laws of mechanics (movements‚ body angles‚ joint positions‚ etc.)‚ biomedical
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frequency as a function of the length of the wire and the acceleration due to gravity. The weight of the bob is not a factor in the equations. Although damping effects from air resistance and friction are a factor‚ they are considered negligible for the basic equations concerning the frequency of the the pendulum‚ as well as the speed of the bob. Questions you may have include: Motion topics Relative Motion‚ Speed‚ Velocity and Acceleration Newton’s Laws of Motion Derivation of a Simple Collision
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object‚ causing it to accelerate. After a period of time‚ however‚ the object stops accelerating. What conclusion can be drawn? A tug-of-war that results in one team pulling the other across the line is an example of unbalanced forces Acceleration is defined as the change in velocity divided by An airplane is flying at 635 km per hour at an altitude of 35 000 m. It is currently over Kansas and is approximately 16 minutes ahead of its scheduled arrival time. What is its velocity? time
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Deceleration behavior therapy and acceleration behavior therapy are to primary methods that behavior therapy uses to affect the frequency of the occurrence of target behaviors. Acceleration behavior therapy increases the frequency of the occurrence of a target behavior‚ while deceleration behavior therapy decreases the frequency of the occurrence of a target behavior. There are three primary deceleration strategies that are used in behavior therapy; differential reinforcement‚ punishment‚ and aversion
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Laboratory Report : Experiment One Title: Determination of the acceleration due to gravity with a simple pendulum Introduction and Theory: A simple pendulum performs simple harmonic motion‚ i.e. its periodic motion is defined by an acceleration that is proportional to its displacement and directed towards the centre of motion. It can be shown that the period T of the swinging pendulum is proportional to the square root of the length l of the pendulum: T2= (4π2l)/g with T the period in
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