
that it only has size and no direction. This is the most essential difference between speed and velocity. Thus, velocity is an equivalent of speed but just with the direction i.e. velocity without the direction would be called speed. Velocity can be divided into two types depending upon the use of the type. The two types are Instantaneous velocity and Average velocity. Instantaneous velocity means the velocity at a single point of time. For example if a car is moving at 40 km/h in the west
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The difference’s between high and low velocity pitchers In my paper I plan to explain the difference between a high velocity pitcher and a low velocity pitcher. Confidence, resiliency, determination, leadership, integrity, composure and location. All of these words are the best qualities of a pitcher. Pitchers are generals on the bump, commanders of the field (All terms for a pitcher on the mound). The team is reflected by their pitcher. There are 2 types of pitchers; a high velocity
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. When and at what height from ground the two particles meet? 3h h Answer: t and x 2g 4 2. 3. 4. 5. A car covers first half of the total journey with uniform velocity 40 m s1 and the other half of the journey with uniform velocity 60 m s1. Find its average velocity in the entire journey. Answer: 48 m s1 A cyclist moves from A to B with uniform speed v0. While returning from B to A it travels for half the time with uniform speed v1 and for the other half the time
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+ 625 km2/hr2 = R2 10 625 km2/hr2 = R2 SQRT(10 625 km2/hr2) = R 103.1 km/hr = R The direction of the resulting velocity can be determined using a trigonometric function. Since the plane velocity and the wind velocity form a right triangle when added together in headtotail fashion, the angle between the resultant vector and the southward vector can be determined using the sine, cosine, or tangent functions. The tangent function can be used; this is shown below: tan (theta
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Speed Worksheet Name _________________________ Period _____ 1. If Steve throws the football 50 meters in 3 seconds, what is the average speed (velocity) of the football? 2. If it takes Ashley 3 seconds to run from the batters box to first base at an average speed (velocity) of 6.5 meters per second, what is the distance she covers in that time? 3. Bart ran 5000 meters from the cops and an average speed (velocity) of 6 meters/second before he got caught. How long did he run? 4
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its the medium (water, air, etc.) around it to vibrate as well. In common everyday speech, speed of sound refers to the speed of sound waves in air. Sound travels faster in liquids and nonporous solids than it does in air. In this experiment, velocity of sound in solid, liquid and gas were determined. Introduction The wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave's shape repeats. It is usually determined by considering the distance
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: 2.1 Linear Motion (2 hour) www.kmph.matrik.edu.my At the end of this chapter, students should be able to: Define and distinguish between i) distance and displacement, ii) speed and velocity, iii) instantaneous velocity, average velocity, uniform velocity iv) instantaneous acceleration, average acceleration and uniform acceleration. Sketch graphs of displacementtime, velocitytime and accelerationtime. Determine the distance travelled, displacement, velocity and uniform acceleration
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2: SPEED, VELOCITY AND ACCELERATION 2.1 Distance and Displacement • Distance is the total length covered by a moving object irrespective of the direction of motion, i.e. only the magnitude is of importance. • Displacement is the distance measured in straight line AND in a specific d__________________. Both magnitude and d_________________ are important. Example 1 A car travels 5 km due east and makes a Uturn back to travel a further distance of 3 km. Find (a) the distance covered
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at constant speed • Threeseconds rule is applied for the minimum safe distance between the two cars • The weather is in a good condition during daylight with good, dry roads • The Corolla KE5 SEDAN is a third generation model produced and sold in 19771979. The length of the Corolla is 3995mm(approx.4m) (wiki.okwave.jp/wikipedia/index/Toyota_corolla) • The delivery van is assumed to be a Ford 3door third generation van which is produced and sold between in 19751991. Its length is 5253mm(approx
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on the object increases. If we consider jumping out of a plane and free fall towards the Earth the F.B.D. would be as follows: Now the force of gravity acting on the object does not change, however as we speed up towards the Earth the force of air resistance is increasing. Eventually there reaches a point when the Fg = Fair when this occurs we are no longer accelerating towards the Earth, but fall with a constant velocity that is called the TERMINAL VELOCITY. The terminal velocity of an object
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. Find the speed acquired by the car. 3. A ship is moving at a speed of 56 km/h. One second later it is moving at 58 km/h. What is its acceleration? 4. A child completes a circular track of 200 m length in 10 seconds. Calculate a) speed, b) velocity. 5. A car travels 10 m in 5 seconds, 20 m in next 10 seconds and 30 m in the last 10 seconds. Find the average speed of the car. 6. A body moving in a circle of radius r covers 3/4th of the circle. Calculate the ratio of distance to displacement. 7
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: 1. A man walks 350 meters along the street in 43 seconds. What is his speed? 2. A train travels 573 meters in 60 seconds. How fast is this train moving? 3. A deer runs 352 meters across an open field in 55 seconds. What is the speed of the deer? 4. An aircraft flies 963 meters in 59 seconds. How fast is it flying? 5. A rocket travels 851 meters in 33 seconds. What is it total speed? Sample Problems for Velocity: 1. Calculate the velocity of a car that travels 556
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 Duration of impulse  Impulse  1  .4295  .6175  1.408  .36  .50688  2  .4181  .6063  1.044  .48  .50112  Table 3 Trial of elastic 1  Impulse F Delta t  Change in momentum  % difference between impulse and change in momentum  1  .59313  .6189415  4.2%  2  .785568  .706715   Table 4 Trial of elastic 2  Impulse F delta t  Change in momentum  % difference between impulse and change in momentum  1
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–2 down d After 0.80 s, the ball has two components of velocity: vx = 20 m s–1 and vy = 0 + (9.8 m s–2)(0.80 s) = 7.84 m s–1 The speed of the ball at 0.80 s is given by: [(20 m s–1)2 + (7.84 m s–1)2]½ = 21.5 m s–1 e The ball will strike the ground 1.0 s after it is struck. Then vx = 20 m s–1 and vy = 0 + (9.8 m s–2)(1.0 s) = 9.8 m s–1 The speed of the ball at 1.0 s is given by: [(20 m s–1)2 + (9.8 m s–1)2] ½ = 22.3 m s–1 Q2. A bowling ball of mass 7.5 kg travelling at 10 m s–1
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;acceleration due to gravity is negative, since it points downward in the negative direction. Solution  2). After 3.00 s of freefall, what is the velocity v of the stone? Solution 1). A football game customarily begins with a coin toss to determine who kicks off. The referee tosses the coin up with an initial speed of 5.00 m/s. In the absence of air resistance, how high does the coin go above its point of release? Reasoning The coin is given
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Time for Practice 1. A stone is thrown horizontally at a speed of from the edge of a cliff in height. How far from the base of the cliff will the stone strike the ground? 2. A toy truck moves off the edge of a table that is high and lands from the base of the table. a. How much time passed between the moment the car left the table and the moment it hit the floor? b. What was the horizontal velocity of the car when it hit the ground? 3. A hawk
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of the practical because the air resistance is acting against the force of gravity hence the object has less acceleration and once the air resistance is stronger then the terminal velocity that is when the object is going at a small velocity. Terminal Velocity When there is equal force acting on an object when falling such as gravity and air resistance at that stage it is called constant speed or terminal velocity. When the object is dropped the force of gravity initially is 100
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Impulsive Force Model Worksheet 2: Quantitative Conservation of Momentum Name: ______________________________________ 1. Kim holds a 2.0 kg air rifle loosely and fires a bullet of mass 1.0 g. The muzzle velocity of the bullet is 150 m/s. Find the recoil speed of the gun. Momentum conservation equation: Recoil speed =________________ 2. If the girl in the previous question holds the gun tightly against her body, the recoil speed is less. Calculate the new recoil speed for the 48 kg girl
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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 proportional to the time. By close observations, recording of data and right computations we were able to come up with accurate results. Hence, the objectives of this experiment were successfully achieved. I. INTRODUCTION  Kinematics is a branch of mechanics that studies the motion of a body or a system
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(part 4 of 4) 10.0 points Find the y component of its velocity just before it strikes the ground. Answer in units of m/s y O x How long after being released does the stone strike the beach below the cliﬀ? The acceleration of gravity is 9.8 m/s2 . Answer in units of s 015 (part 2 of 3) 10.0 points At impact, what is its speed? Answer in units of m/s 016 (part 3 of 3) 10.0 points At what angle below the horizontal does it land? Answer in units of ◦ 017 (part 1 of 5) 10.0 points
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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
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start off with acceleration, which is the increase of speed or velocity. In our roller coaster acceleration happens as you move down the slope, through the loop, and around the curve. Negative acceleration happens as you move up the loop, before the hill and right before the exit path. In order for negative acceleration to happen we need friction. Friction is the rubbing of one object or surface against another. Friction is what makes the object slow down as it moves up the loop and up the hill
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: Upper River Methodology  Sites  Equipment  MeasureMents.  How Many?/How of often?  EvaluationsTechniques.  Velocity  13  * Ranging poles, * Stopwatch, * Tape measure  Seconds  5 times  To see how velocity changed with distance downstream.  River Gradient  13  * Clinometer * Ranging poles  Degrees  Once  To see a difference in the Gradient.  Bed load size  13  * Ruler.  Centimetres  10 times  To see if the size of the rocks
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. 4. The distance between two planets of masses 25x1025kg and 30x1025kg is 1012km. Calculate the attractive force between them. 5. The load with mass m=1.5kg is attached to the string of length l=1.5m and moves along a vertical circle with constant velocity v=1.5m/s. What are the maximum and minimum tensions in the string and in what positions? Determine the angular speed, period and frequency. 6. The object of mass m=100kg is pulled by force F=12kN. If it moves with constant velocity
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that the speed of the plane relative to the air is 325 km/h. The instruments also show that the plane is pointed in a direction [S3O°W]. A radio report indicates that the wind velocity is 80 km/h[W]. What is the velocity of the plane relative to the ground as recorded by an air traffic controller in a nearby airport? 3. A blimp pilot wants to travel north. The blimp can move at 26 km/h in still air. There is a wind of l0 km/h[E]. a) What is the heading? (That is, which way should the pilot
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PHY115 Experiment 3 Projectile Motion You have probably watched a ball roll off a table and strike the floor. What determines where it will land? In this experiment, you will roll a ball down a ramp and determine the ball’s initial velocity with a pair of photogates. You will use this information and your knowledge of vectors to predict where the ball will land. You will also learn how to determine percent difference between an expected value and measured value. Figure 1 OBJECTIVES
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, "distance from A to B" is interchangeable with "distance between B and A". CHAPTER 12: SPEED: In kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity. Theaverage speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval;[1] the instantaneous speed
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Physics 12 – Kinematics Worksheet 1. Which one of the following contains only vector quantities? A. mass, time B. force, velocity C. time, momentum D. acceleration, speed 2. An airplane heads due north with an airspeed of 75 m/s. The wind is blowing due west at 18 m/s. What is the airplane’s speed relative to the ground? A. 57 m/s B. 73 m/s C. 77 m/s D. 93 m/s 3. Two velocity vectors, v1 and v2 are shown. Which of the following best represents the resultant of the addition
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? [3] 10. Draw diagrams to show the difference between the structures of the three types of muscles fibres. [3] (a) List any four characteristics of parenchyma tissue. (b) What is aerenchyma? [3] Define manures. What are its three different kinds? State two limitations of manures. Write any one function of the following: [3] (a) Lysosome (b) Golgi apparatus (c) Endoplasmic Reticulum (a) What is mixed cropping? (b) Write any two advantages of mixed cropping. 11. 12. 13. 14. [3] 15
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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
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Problems (Chapter 3) Review Example problems #1  12 by yourself. Problem 3 (page 96): A web page designer creates an animation in which a dot on a computer screen has a position of r = [4 cm + (2.5 cm/s2)t2]i + (5 cm/s)t j. a) Find the magnitude and direction of the dot’s average velocity between t = 0 and t = 2 s. b) Find the magnitude and direction of the instantaneous velocity at t = 0, t = 1 s, nd t = 2 s. c) Sketch the dot’s trajectory from t = 0 to t = 2 s, and show the velocities
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is inversely proportional to that of the wave length. In other words, if the velocity increases to a higher speed, then the wave length decreases in size. A series of different instruments were used in determining the speed of sound in this experiment. This included a frequency meter, a signal generator, a speaker, a microphone, and an oscilloscope. Each had its own purpose in measuring the speed of sound. Specified values were used in this experiment. Instrument  Manufacturer  Model
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more current to the circuit. SPEED! Speed is the velocity the object is travelling at. It can be measured by KM/H, MP/H, MP/S etc. It’s basically how far the object travels in a certain time. The equation for speed is: Speed=Distance÷Time. Distance=Speedxtime. Time=Distance÷Speed. ‘The space shuttle will travel the first 50,000km of its journey in 2 hours. It will complete the second stage of its journey (750,000km) in 25 hours. Finally it will complete the last 260,000km in 20 hours
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. is a vector 14.3 units in magnitude and points at an angle of 34.8º above the negative x axis. (a) Sketch this vector. (b) Find (the xcomponent) and (the ycomponent) of this vector. 5. A car is driven 215 km west and then 85 km southwest. Draw a vector diagram to represent this motion.What is the displacement of the car from the point of origin? 6. An airplane is traveling 735 km h1 in a direction 41.5º west of north. (a) Find the components of the velocity vector in the northerly and westerly
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1. A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at an average speed of 40 km/h. The average speed of the car for this 80 km trip is: A) 40 km/h B) 45 km/h C) 48 km/h D) 53 km/h E) 80 km/h 30’+60’ = 90’=5400s=1.5h 40km+40km=80km vavg= 80000m/5400s=13.168724279835390946502057613169 m/s = 48 km/h 2. The coordinate of an object is given as a function of time by x = 7t – 3t2, where x is in meters and t is in seconds. Its average velocity over
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is the difference between speed and velocity? 2. What is described when a car travels 60 km/h? How could we describe its velocity? 3. In terms of scalar and vector quantities, how would you describe speed? Velocity? 4. What does constant speed describe? Constant velocity? 5. If the velocity changes what also must be changing? Explain. 6. What controls on a car cause a change in speed? What causes a change in velocity? 7. What do we call the tendency of an object to resist change in its state of...
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in a lathe and rotate the shaft at some speed [rpm] such as 1000rpm. With a dc motor, use a dc voltmeter to measure the armature voltage. The Ke is then the voltage you read divided by the speed in rad/sec. Convert rpm to rad/sec asrev 2π radians min rad x x = rev min 60 sec sec Volts [v] Volts[v ] Ke = or speed [rad / sec] speed [rpm] With a BLDC motor use an ac voltmeter to measure the voltage between any 2 wires of the 3 motor wires and then convert the linetoline
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1. Alice throws the ball to the +X direction with an initial velocity 10m/s. Time elapsed during the motion is 5s, calculate the height that object is thrown and Vy component of the velocity after it hits the ground. 2. John kicks the ball and ball does projectile motion with an angle of 53º to horizontal. Its initial velocity is 10 m/s, find the maximum height it can reach, horizontal displacement and total time required for this motion. (sin53º=0, 8 and cos53º=0, 6) 3. The boy drops
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Experiment #2 Resonance of Air Columns Connie Wang PHYS 2426 – 103 Partners: Deneen Ernst, Dalton Penn, and Trey Thompson DATA__________________________________________________________________________________________ Room Temperature: 21°C Theoretical speed of sound: 343 m/s Experimental speed of sound (average): 348 m/s Percent Difference: + 1.46% Frequency of Tuning Fork (Hz)  First Position of Resonance  Second Position of Resonance  Wavelength (m)  Velocity of Sound
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of 16 m s−1. a. What is the acceleration of the Prius? b. What is the average velocity of the Prius? c. Calculate the distance travelled by the Prius. 4. A new model Subaru can start from rest and travel 400 m in 16 s. a. What is its average acceleration during this time? b. Calculate the final speed of the car. c. What is its final speed in km h−1? 5. During its launch phase, a spacerocket accelerates uniformly from rest to 160 m s−1 in 4.0 s, then travels with a constant speed
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Lesson 1.02 Speed, Velocity, and Acceleration Speed measures the amount of distnace traveled in a given amount of time. (Doesn't measure the direction of the travel) How fast an object is going with respect to a frame of reference. You find speed by dividing distance by time. (Speed = distance/time) Instantaneous speed the speed you are traveling at that moment, instead of an average. Motion change in position of an object, relative to a frame of reference. Frame of reference place
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to each other and the height and gravitational pull affects the acceleration of a moving and a free falling object. 3. From the data obtained, how would you account the difference between the picket fence’s acceleration and the value of g? The value of the slope of a graph of average velocity versus time will be the acceleration due to gravity of the falling object. E102MOTION ALONG A STRAIGHT LINE PROBLEM: 1. A police car is searching for a fugitive that managed to escape a while
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is called the net force The difference between speed and velocity is that velocity The distance traveled by an object divided by the time it takes to travel that distance is called The law that states that every object maintains constant velocity unless acted on by an unbalanced force is includes direction average speed Newton's first law of motion. The law that states that for every action force there is an equal and opposite reaction force is Newton's third law of motion. The SI
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Task 2 CYP 3.1 (1.2) Explain the difference between sequence of development and rate of development and why is this difference important. Sequence of development refers to the normal sequence in which children learn different skills, and the rate of development refers to the speed in which a child will develop. However, according to Burnham et al (2010) the difference between the sequence of development and the rate of development is that the sequence refers to the normal or expected
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PROCESSING THE DATA (PART A) 1. Describe the difference between the two lines on your graph made in Step 6. Explain why the lines are different. Referring to graph on the right the difference between the two lines is that one line is at a faster speed than the other in the same amount of time. While one is steeper the other one is not as steep. 2. How would the graph change if you walked toward the Motion Detector rather than away from it? Test your answer using the Motion Detector
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Physics 1 Experiment #4: “Measurement of the Speed of Sound in Air” Measurement of the Speed of Sound in Air Writeup The data on the hand drawn graph, previously shown, fits that of a straight line; this means that there is a linear relationship between the dependent (position) and independent (time) variables. The value of the slope of the line determined by hand is the same as the value obtained from the linear regression done with the calculator because the points chosen were
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The study on the Relationship between Water Flow Velocity and Algal Blooms in Taihu Lake By Yuxi Niu A thesis submitted in partial fulfillment of the requirements for the award of the degree of BACHELOR OF ENGINEERING CIVIL From UNIVERSITY OF WOLLONGONG FACULTY OF ENGINEERING November 2011 Acknowledgements I have been appreciated in the preparation of this thesis to my supervisor, A/P ShuQing Yang of University of Wollongong, whose patience and kindness. And his acadmic
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of the net external force and the mass of the object (acceleration = Force / mass). The net external force is equal to the difference between the weight and the drag forces (Force = Weight  Drag). The acceleration of the object then becomes acceleration = (Weight  Drag) / mass. The drag force depends on the square of the velocity. So as the body accelerates, its velocity (and the drag) will increase. It will reach a point where the drag is exactly equal to the weight. When drag is equal
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difference of 120 V across it. What is the current in the lightbulb? 13. An electric heater carries a current of 13.5 A when operating at a voltage of 120 V. What is the resistance of the heater? 18. Aluminum and copper wires of equal length are found to have the same resistance. What is the ratio of their radii? 19. If the magnitude of the drift velocity of free electrons in a copper wire is 7.84 10–4 m/s, what is the electric field in the conductor? 21. If a certain silver wire has
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displacement is given by Δx = xf  xi the difference between displacement and distance is important to note. Distance is it length of a path followed by a particle The average speed Vavg of is a scalar quantity defined as the ratio total distance traveled to the total time interval required to travel that distance ≡ The average velocity Vx,avg of a particle is defined as the particle’s displacement Dx divided by the time interval Dt during which that Displacement occurs
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