Ballistic Galvanometer Name: Faisal Ahmed Moshiur Group: A Batch: 10 Roll: Sh-099 Introduction The basic theory on a ballistic galvanometer starts with torque associated with a current carrying loop. A brief review of ordinary moving coil galvanometer is presented followed by the effects of transient currents. This paves the way for a detailed analysis of ballistic galvanometer
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| The Ballistic Pendulum | Determining the initial speed of a projectile | | | | | THE BALLISTIC PENDULUM ABSTRACT The experiment was carried out to determine the initial speed of a projectile: i) by means of a ballistic pendulum. ii) by measurements of the range and vertical distance of fall during its flight. The initial speed for the ballistic pendulum was found to be 5.0551±0.0008m/s and the initial speed for the pendulum was found to be 4.72±0.02 m/s. INTRODUCTION:
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Investigation Ballistics In forensic science ballistics‚ the study of motion‚ examines the dynamics‚ angular movement‚ and effects of projectile units such as bullets‚ missiles‚ and bombs. There are many applications of ballistics within a criminal investigation. Bullets that have been fired at the scene of any crime will be examined in the hopes of discovering several pieces of information. The actual bullets can identify what type of gun the criminal used and whether or not the firearm is connected
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Firearms should be photographed overall‚ midrange‚ and up-close with a scale. Make sure that the weapon is unloaded and made safe. Firearms should be packaged in a cardboard gun box. Make sure to zip tip the firearm down as well as zip tie trough the barrel to show that the firearm is safe. Magazines can be zip tied down and packaged in the same gun box. The serial number‚ model‚ make‚ and caliber of the firearm need to be recorded. If a firearm has blood or other material on it‚ make sure to surround
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Firearm injuries to the maxillofacial region can cause severe morbidity and mortality. These injuries vary in significance from trivial to life threatening‚ and are some of the more difficult injuries treated by multidisciplinary trauma teams (Fig. 1). Multiple critical structures are in close proximity in the maxillofacial region; therefore‚ damage can occur to multiple organ systems. Additionally‚ soft- and hard-tissue damage can be extensive‚ often requiring multiple interventions with limited
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All guns have the potential to be dangerous and should be handled with care. Guns have been part of American life for as long as people can remember. For most people guns are perceived as very dangerous and harmful. However‚ that is not true; guns can be dangerous‚ but only if they are in the wrong hands. Owning a gun is right that every American should be able to take pride in having. Guns are used for self-defense‚ hunting‚ law enforcement and other uses. The right to own a gun is protected in
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Introduction: The study of the ballistic pendulum began with Benjamin Robins in the early 1700 ’s. Robins was an English mathematician and writer on ballistics‚ and used this testing apparatus for the evaluation of the strength of gunpowder and the measurement of air resistance (Calvert‚ 2006). At the time of the American Revolution a loyalist named Benjamin Thompson also utilized and expanded the use to the ballistic pendulum. He further evaluated the efficiency of gunpowder. He fired from
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22‚ 2014 Ballistic Pendulum Lab Objective: Determine the velocity of the projectile as it reaches the pendulum. Hypothesis: Firstly‚ we guess that the outcome of the velocity of the projectile is 6.3 meters per second [left].The formulas we use to find the final velocity of the projectile are Trigonometry‚ Kinetic and Potential Energy‚ and Momentum. Mass of the pendulum = 80.0g Mass of the ball = 7.64g Length of the string = 21cm Equipment: Ballistic pendulum device
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Robert Spencer‚ June 3‚ 2013 Discuss the procedures for collection and packaging firearms evidence at a crime scene. After a firearm has been photographed at the scene‚ it will be necessary to be rendered safe. An automatic pistol will require its magazine to be removed and the round extracted from the chamber. When removing the magazine it will need to be handled carefully in order to preserve potential fingerprint evidence and be placed in a paper or plastic evidence bag. The round
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Reveiw Questions What is the NIBIN? The NIBIN is The National Integrated Ballaistic Identification Network. What is rifling? What two types of markings does this produce? Rifling is the spiral grooves cut into the barrel of a gun in order to make a bullet spin as it is fired . The two types of markings that rifling produces is grooves and lands. What is a distance determination? How is this done? Distance determination is the process of estimating the distance between where a shot is fired
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