Chug 1-5 1. Calculate the resultant velocity of an airplane that normally flies at 200 km/h if it encounters a 50 km/h tailwind. If it encounters a 50 km/h headwind? 200+50=250km/h 200-50=150km/h 2. Calculate the resultant of the pair of velocities 100km/h north and 75 km/h south. Calculate the resultant if both of the velocities are directed north. 100+75=175km/h 100-75=25km/h 3. Calculate the magnitude of the resultant of a pair of 100 km/h velocity vectors that are at right angles to
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Box pushed with a force 125 N for 2.00 min. What is the impulse? Impulse=125N*120s Impulse=15000Ns=15000(kg*m/s^2)(s) Impusle=15000kg*m/s 7. 15.0g bullet fired. Muzzle velocity 3250m/s from a rifle with mass 4.74kg and barrel length 75.0 cm. A) How long is bullet in barrel? d/s=t B) what is the force on the bullet while in the barrel? C) Find the bullet’s momentum as it leaves barrel. a) t=75cm/3250m/s 100cm=1m
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Physics 211 Experiment #4 Newton’s Second Law – Atwood’s Machine Newton’s second law (FNET = ma) can be experimentally tested with an apparatus known as an “Atwood’s Machine” (See Figure 1.) Two weights of unequal mass‚ connected by a thread‚ are draped over a pulley‚ as shown in the figure. When released‚ the larger mass accelerates downward and the smaller one accelerates upward. Figure (1a): The Atwood’s Machine‚ showing the pulley and the two masses after a run. Figure (1b): A close
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or how far she fell. I assumed that she fell about 20 stories‚ or 200 feet (61 meters). If the absence of air resistance is assumed‚ you can find her final velocity using the equation: We know her initial velocity was 0 m/s‚ acceleration due to gravity is 9.8 m/s^2‚ and she fell 61 meters. After plugging in these values‚ the final velocity was determined to be 34.6 m/s. To put this in terms that can be visualized‚ Lois Lane was falling at a speed of about 77mph when superman caught her. I then
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. . . . . . . . . . 1.1.1 1.1.2 1.1.3 Minimum Time for a Vehicle to go from 0 to 60 mph. Minimum Stopping Distance . . . . . . . . . . . . . . Flight of the Bumblebee . . . . . . . . . . . . . . . . . 5 7 7 7 8 8 11 2 Bouncing Ball 3 Maximum Velocity in a Quarter Mile 1 4 Rolling Up A Ramp 4.1 4.2 Maximum Height of Ball . . . . . . . . . . . . . . . . . . . . . Hoop‚ Disk‚ Cylinder and Sphere . . . . . . . . . . . . . . . . 11 11 13 14 15 17 18 18 19 20 22 24 24 26 27 28 28 30 5 Height
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(1) Physical and physiological attributes of female team handball players Abstract The main purpose of this article is to review a series of studies (N = 18) on the physical characteristics‚ physiological attributes‚ throwing velocity and accuracy‚ and on-court performances of female team handball players. Studies were selected from a computerized search in electronic databases (Pub Med‚ SPORT Discus) as well as from a manual search. Five main findings emerged from this review: (1) a tall and heavy
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trunk reaches its lowest angle (i.e. its most flexed position) prior to take-off. • Note down the angular velocity of the trunk at this time‚ and explain your observation. • Note down the angular acceleration of the trunk at this time‚ and explain your observation. • Describe the motion of the trunk (in terms of flexion and extension) and explain the pattern of the angular velocity and angular acceleration of the trunk during the take off phase of the SVJ.
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Apparatus objects to drop‚ stopwatch‚ meter stick‚ Pasco motion sensor Procedure Each group will get 1 object record the balls mass Using a meter stick measure a height (distance) that you are going to drop your ball. Making sure that your initial velocity of the ball is 0 m/s‚ drop the ball and measure (using the stopwatch) the time that it takes to hit the ground. Repeat at least 5 times (discard any really bad measurements) Calculate average time Use the kinematic equation - d vit at2 to calculate
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will need to use the formula s=d/t (s= speed‚ d=distance‚ t=time). On the other hand‚ for accelaration you will use the formula a= vf-vi/t (a=acceleration‚ vf=final velocity‚ vi= initial velocity‚ t=time). Average speed is how fast something is moving; the path distanced moved per time. Acceleration is the rate of which velocity is changing‚ the change may be in magnitude‚ direction‚ or both. Materials & Procedures: The materials you will need for this experiment are: -3 people -stopwatch
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number of iterations becomes more important. When the convergence was set at a value less than 10e-04 the results were more accurate. *3. Comparison For* First Order Discretization 3.1 Velocity magnitude {draw:frame} {draw:frame} Figure 3.1: Velocity variation for triangular mesh Figure 3.2: Velocity Variation for quadrilateral mesh These graphs show that the
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