Exercises for Chapter 1 Kinematics 1. An impulsive retarding force of 3 seconds duration acts on a particle which is moving with a forward velocity of 60 m/s. The oscilloscope record of the deceleration is shown. Determine the approximate velocity of the particle at t = 9 s. [answer: -58 m/s] 2. A car can decelerate at 0.8 ‘g’ on a certain road. Find the total emergency stopping distance measured from the point where the driver first sights the danger for a speed of 100 km/hr. The time taken for
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1. Two ships P and Q are moving along straight lines with constant velocities. Initially P is at a point O and the position vector of Q relative to O is (6i + 12j) km‚ where i and j are unit vectors directed due east and due north respectively. The ship P is moving with velocity 10j km h–1 and Q is moving with velocity (−8i + 6j) km h−1. At time t hours the position vectors of P and Q relative to O are p km and q km respectively. (a) (b) (c) Find p and q in terms of t. (3) Calculate the distance
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Biochemistry of Muscle Contraction Fred P. Guillergan M.D.‚ FPCP Outline histology and biochemistry of muscles (Striated & smooth) – Myosin – Actin‚ Tropomyosin‚ Troponin – Accessory proteins of muscles Biochemical events in muscle contraction Calcium‚ Ca2+-binding proteins and Ca2+ channels in muscle contraction Biochemistry of Cardiac & Smooth muscle contraction Energetics of muscle contraction ☻Able to understand the normal anatomy and physiology of different types of muscles
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Name: Cassidy Lessig Activity 1 The Muscle Twitch and the Latent Period 1. 1. Define the terms skeletal muscle fiber‚ motor unit‚ skeletal muscle twitch‚ electrical stimulus‚ and latent period 2. What .is the role of acetylcholine in a skeletal muscle contraction? Skeletal muscle fiber-Skeletal muscle fibers are the individual cells that are bound together in fascicles. Many fascicles are bound together to make a muscle Motor unit-A motor unit consists of a motor neuron and all of the muscle
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4) What is the name of Eric’s dog? A. Julia B. Paw C. Andre 5) What color is Eric’s dog? A. He is white. B. He is black. C. He is brown. 6) What is the name of Eric’s younger sister? A. Carrie B. Rachel C. Andre 7) What is the name of Eric’s older sister? A. Carrie B. Rachel C. Andre Q2. Put the words in correct order to make the sentences. To Friends going Bremen were four the __________________________________________________________________
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3.1 Metabolic Load: The metabolic activities inside human body constantly create heat and humidity (i.e. perspiration). This heat passes through the body tissues and is finally released to the cabin air. This amount is considered as a heat gain by the cabin air and is called the metabolic load. The metabolic load can be calculated by Qmet = Σ MADU Passengers Where M is the passenger’s metabolic heat production rate. (It is assumed from ISO 8996 based on various criteria for driver: M = 85 W/m2
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Lab 6: Amphibian Muscle Contraction Results: For this experiment‚ Isometric contractions of the gastrocnemius muscle of a frog were analyzed and from this data the latent period‚ twitch‚ motor unit summation‚ tetanus‚ fatigue & mechanical summation were measured. The data was used to quantify the effect of passive tension on the twitch force‚ effect of stimulus intensity on the twitch force‚ effect of stimulus frequency on contractile force of xenopus gastrocnemius muscle. The threshold voltage
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CHAPTER 4 AIRCRAFT BASIC CONSTRUCTION INTRODUCTION Naval aircraft are built to meet certain specified requirements. These requirements must be selected so they can be built into one aircraft. It is not possible for one aircraft to possess all characteristics; just as it isn’t possible for an aircraft to have the comfort of a passenger transport and the maneuverability of a fighter. The type and class of the aircraft determine how strong it must be built. A Navy fighter must be fast‚ maneuverable
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motion of objects without considering the effects that produce the motion. This experiment will show how to determine the linear motion with constant (uniform) velocity particularly the dynamic cart and linear motion with constant (uniform) acceleration‚ (e.g. free fall of motion). At the end of the experiment we found out that the velocity is a speed that involves direction of an object as well as the time. While for the acceleration‚ it is directly proportional to the distance or height but inversely
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As we all know it was Germany who insisted to propose and impose austerity measures on its neighbors‚ in order for this European nations to balance their national deficits. However‚ after looking at the latest treasury report on foreign economic and currency policies‚ the question is raised on weather Germany has maliciously taken advantage from this policy. Mainly because at the present time‚ Germany has the biggest trade surplus of any nation in the entire globe‚ and by a huge margin deference
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