An elementary treatise on mechanics1848 |
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Σελίδα vi
... balance , 87 ; steelyard balance , 89 ; bent lever balance , 91 ; Roberval's balance , 92 CHAPTER VIII . APPLICATION OF THE PRINCIPLE OF VIRTUAL VELOCITIES TO THE MECHANICAL POWERS Wheel and axle , 94 ; toothed wheels , 95 ; pullies ...
... balance , 87 ; steelyard balance , 89 ; bent lever balance , 91 ; Roberval's balance , 92 CHAPTER VIII . APPLICATION OF THE PRINCIPLE OF VIRTUAL VELOCITIES TO THE MECHANICAL POWERS Wheel and axle , 94 ; toothed wheels , 95 ; pullies ...
Σελίδα 5
... balanced by an equal force acting at the same point in an opposite direction . It is clear that this must be true ... balance , and therefore Q produces the same tendency to motion that Q ' , a different force does , which is absurd ...
... balanced by an equal force acting at the same point in an opposite direction . It is clear that this must be true ... balance , and therefore Q produces the same tendency to motion that Q ' , a different force does , which is absurd ...
Σελίδα 6
... balance , and the condition of equili- brium of forces acting in the same straight line is , that their algebraic sum = 0 . Hence , we may add equal and opposite forces at any point without affecting a system of statical forces : this ...
... balance , and the condition of equili- brium of forces acting in the same straight line is , that their algebraic sum = 0 . Hence , we may add equal and opposite forces at any point without affecting a system of statical forces : this ...
Σελίδα 11
... balance the last force P5 , represented by the last side EA of the poly- gon , and acting in the direction from E to A. It will be seen from the proof that it is not necessary the forces should lie all in one plane . This proposition is ...
... balance the last force P5 , represented by the last side EA of the poly- gon , and acting in the direction from E to A. It will be seen from the proof that it is not necessary the forces should lie all in one plane . This proposition is ...
Σελίδα 23
... balanced only by an equal and opposite tendency produced by an oppo- site couple . Statical couples have peculiar properties , which we will now discuss , and chiefly by employing the super - position of equilibrium . See page 6 . 18 ...
... balanced only by an equal and opposite tendency produced by an oppo- site couple . Statical couples have peculiar properties , which we will now discuss , and chiefly by employing the super - position of equilibrium . See page 6 . 18 ...
Άλλες εκδόσεις - Προβολή όλων
Elementary Treatise on Mechanics (Classic Reprint) Richard Potter Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Elementary Treatise on Mechanics (Classic Reprint) Richard Potter Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
a₁ accelerating force angle applied Article AUGUSTUS DE MORGAN axes axis axle balance beam bisect body falls brium center of gravity cloth co-ordinates condition of equilibrium couple cycloid diagonal direction distance draw elasticity equal and opposite equation equili figure find the center fixed point forces act friction fulcrum given Greek horizontal plane impact inclined plane JUSTUS LIEBIG law of motion length lever LIEBIG magnitude mechanical advantage modulus of elasticity moving number of forces P₁ P₂ parallel forces parallelogram perpendicular Plates point of application polygon principle of virtual projected PROP pulley R₁ R₂ radius reaction represent respectively rest resultant screw Second Edition shew sides smooth space statical surface system of pullies t₁ tension three forces tion triangle uniform University of Edinburgh University of Giessen vertical line virtual velocities holds w₁ wedge weight wheel
Δημοφιλή αποσπάσματα
Σελίδα 2 - Pharmacy in the Pharmaceutical Society of Great Britain. Edited, with extensive Additions, by PROF. WILLIAM PROCTER, of the Philadelphia College of Pharmacy.
Σελίδα 10 - System of Classical Instruction, restoring the Method of Teaching formerly practised in all Public Schools. The Series consists of the following Interlinear Translations with the Original Text, in which the quantity of the doubtful Vowels is denoted ; critical and explanatory Notes, &c. V* By means of these Works, that excellent system of Tuition is effectually restored which was established by Dean Colet, Erasmus, and Lily, at the foundation of St.
Σελίδα 3 - A History of Rome ; from the Earliest Times to the Death of COMMODUS, AD 192. By Dr. L. SCHMITZ, Rector of the High School of Edinburgh, Editor of "Niebuhr's Lectures.
Σελίδα 8 - HODGSON -MYTHOLOGY FOR LATIN VERSIFICATION. A brief Sketch of the Fables of the Ancients, prepared to be rendered into Latin Verse for Schools.
Σελίδα 13 - Outlines of the Course of Qualitative Analysis followed in the GIESSEN LABORATORY. By HENRY WILL, Ph. D., Professor Extraordinary of Chemistry in the University of Giessen. With a Preface by BARON LIEBIG. 8vo, 6s., or with the Tables mounted on linen, 7».
Σελίδα 5 - Schmitz's History of Rome, From the Earliest Times to the Death of Commodus, AD 192. With Questions, by J.
Σελίδα 64 - Levers are commonly divided into three kinds, according to the relative positions of the power, the weight and the fulcrum. In a lever of the first kind, as in Jig-. 78., the fulcrum is between the power and weight. In a lever of the second kind, as in Jig.
Σελίδα 6 - From the Invention of Printing to the present time ; being Brief Notices of a large Number of Works drawn up from actual inspection.
Σελίδα 29 - ... projectile. Find the velocity at any point of the path and the level from which it must fall freely in order to acquire this velocity. 7. Show how to find the magnitude and direction of the resultant of any number of forces in one plane acting on a particle. Find the magnitude of the resultant of forces P, 6P, and 9P, when the second force makes 60° with each of the others.
Σελίδα 5 - There is no need of pronouncing any formal eulogium on this new Classical Dictionary, for in fact it is the only one with any pretensions to the name in our language ; and as such it must form part of the library of every student who desires to become acquainted with the mind of antiquity.