This ultrasonic rangefinder can measure distances up to 2.5 meters at an accuracy of 1 centi meter. AT89s51 microcontroller and the ultrasonic transducer module HC-SR04 forms the basis of this circuit. The ultrasonic module sends a signal to the object‚ then picks up its echo and outputs a wave form whose time period is proportional to the distance. The microcontroller accepts this signal‚ performs necessary processing and displays the corresponding distance on the 3 digit seven segment display. This
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IB Math Studies Internal Assessment: Is the distance a tennis ball travels horizontally dependent on the angle of which it is dropped at? Exam Session: May 2014 School Name: Teacher: Course: IB Math Studies Word Count: 654 Name: Is the distance a tennis ball travels horizontally dependent on the angle of which it is dropped at? Introduction In tennis‚ players hit the tennis ball in certain ways so the ball goes the way they want it to go. Hitting it at certain angles enables
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of animals to show how human’s behaviour are related to the environment. Space limitation is the basic function to show how animals behave disorderly. The experiments of crabs‚ rats and Sika deer indicate that under different condition of physical distance‚ animals behave dissimilarly. If it is too crowding‚ stress is caused. Besides‚ visual space and auditory space are important as well since same thing in two individuals is not in the same way. Hall points out that "information received from receptor
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than the tennis ball for both distances because the racket ball is bouncy. Materials: *Tennis ball *30yards of space *Racket ball *Set of stairs *Stop watch *measuring tape Procedures: 1) Measure out 30 yards of space‚ have of member stand at one end of the field with a stop watch in hand. 2) Another member throw the tennis ball 30 yards while timing how long it take to get there. 3) Repeat 2 more times and collect the average speed (total distance/ total time). 4) Repeat this
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Acceleration Velocity Displacement Distance Time Definition 1. Acceleration is the rate of change of velocity with time. Velocity is a vector physical quantity; both magnitude and direction are required to define it. the length of an imaginary straight path‚ typically distinct from the path actually travelled by P. Distance is a numerical description of how far apart objects are. In physics or everyday usage‚ distance may refer to a physical length‚ or an estimation Time in physics is
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centers of the 75‚000-square-foot facility. Refer to the following closeness matrix and use rectilinear distance (the current distance from inspection to ship- ping and receiving is three units) to calculate the change in the weighted distance‚ wd‚ score if Baker exchanges the locations of the tool crib and inspection. Current Proposed Department pair Number of trips Distance Wd Score Distance Wd Score 1‚2 8 3 24 3 24 1‚3 3 1 3 1 3 1‚5 10 1 10 2 20 1‚6 6 2 12 1 6 2‚4 2 1 2 1 2 3‚5 9 2 18 3 27 3
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whose philosophical dimensions transcend any region. In a lot of Robert Frost’s poems he talks about nature. Two particular poems of his‚ "After Apple Picking" and "Stopping by Woods on a Snowy Evening" are great examples of poems with the theme about nature. Although the poems have similar themes‚ there are some differences. "Stopping by Woods on a Snowy Evening" is a very calm and peaceful poem that creates a very clear mental picture. You can almost touch the snow and feel the wind. Frost is very
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XYZ IB SL Math Circles Aim: The aim of this task is to investigate positions of points in intersecting circles. Introduction: The above diagram shows that distance r is the distance between any point‚ such as A‚ and the center of the circle‚ O‚ of the circle C1. The circle C2 has centre P and radius OP. A is one of the points of intersection of C1 and C2. Circle C3 has centre A‚ and radius r. The point P’ is the intersection of C3 with (OP). The r=1‚ OP=2‚ and P’=0.5. This is shown
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attribute in any equivalence class is close to the distribution of the attribute in the overall table (i.e.‚ the distance between the two distributions should be no more than a threshold t). We then propose a more flexible privacy model called closeness that offers higher utility. We describe our desiderata for designing a distance measure between two probability distributions and present two distance measures. We discuss the rationale for using closeness as a privacy measure and illustrate its advantages
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space‚ which is the distance we are comfortable maintaining with close friends (about 1.5 to 4 feet). 3. Social space‚ which indicates our preferred proximity to acquaintances (about 5–12 feet). 4. Public space‚ which is the distance we need for public speaking (12–25 feet or more). The distances in which people feel comfortable vary from culture to culture. Some societies value individualism and require more personal space. Whereas other cultures view excessive distance as rude or unfriendly
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