Results 241 to 250 of about 103,506 (295)
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The Mathematics Teacher, 1964
Considerable facility with functions of angles in triangles is still demanded of students.
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Considerable facility with functions of angles in triangles is still demanded of students.
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Understanding projectile acceleration.
Journal of Experimental Psychology: Human Perception and Performance, 2000Throwing and catching balls or other objects is a generally highly practiced skill; however, conceptual as well as perceptual understanding of the mechanics that underlie this skill is surprisingly poor. In 5 experiments, we investigated conceptual and perceptual understanding of simple ballistic motion.
Hecht, Heiko, Bertamini, Marco
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Sterilization of Projectile Syringes
Journal of the American Veterinary Medical Association, 1972NZP
Bush, R. Mitchell, Gray, Clinton W.
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The envelope of projectile trajectories
European Journal of Physics, 2002The paper presents yet another elegant solution to the classical problem of maximizing the range of a projectile fired from above or from below the horizontal target plane. The method makes use of the envelope of the family of the projectile trajectories and it not only solves the original problem, but can be applied to maximize the projectile range on
Narančić, Zoran +3 more
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Projectile identification system
32nd Applied Imagery Pattern Recognition Workshop, 2003. Proceedings., 2004The U.S. Army plans for the needs of future warfare to retain its technological superiority. Future Combat Systems (FCS) is a major effort designed to meet this need. FCS includes multiple automated fire weapons. On current systems, a human typically enters information about each projectile loaded.
Glenn J. Beach +3 more
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Notes on Projectile Motion [PDF]
If we throw a ball at angle 0≤θ≤π/2 to the horizon randomly, what is the expected length of the trajectory? Catalan’s constant appears in the answer.
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Comparison Of Emi Measurements On Large Projectiles And On Exploded Projectile Fragments
16th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 2003A seeded test site of large inert projectiles was set up on a former artillery range with real exploded clutter and measured by EM61 and EM61 MkII electromagnetic induction (EMI) sensors. The major source of non-ordnance signatures was clusters of exploded shell fragments.
Bruce Barrow, H. H. Nelson
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The Measurement of Projectile Velocities
Transactions of the American Institute of Electrical Engineers, 1920The paper discusses the requirements imposed by proving ground practise upon a chronograph which is intended for general ammunition testing. Instruments of the standard pre-wvar pattern were entirely inadequate in number for testing the immense quantities of ammunition contracted for by the Government during the war.
Paul E. Klopsteg, Alfred L. Loomis
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Projectiles and Hafting Technology
2016Stone tool hafting has always been considered important, but its interpretative potential has not yet been sufficiently recognized. While wear studies have recently demonstrated the possibility of deriving hafting data from the stone tools themselves, it is essential that these kinds of data are now also integrated with regard to armature ...
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