Lessons in Applied MechanicsMacmillan, 1891 - 512 σελίδες |
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Σελίδα 82
... energy or work , turning it into heat . Thus , whenever a spring is forcibly extended or com- pressed it is heated . This effect is , however , of small magnitude . ] Lifting of a Rope or Chain . - Fig . 82 PART I APPLIED MECHANICS.
... energy or work , turning it into heat . Thus , whenever a spring is forcibly extended or com- pressed it is heated . This effect is , however , of small magnitude . ] Lifting of a Rope or Chain . - Fig . 82 PART I APPLIED MECHANICS.
Σελίδα 83
... rope being drawn up and coiled on a barrel . The resistance to motion is , at any instant , equal to the weight of rope then hanging that already coiled having no effect . The point of the chain which we will use to define the motion is ...
... rope being drawn up and coiled on a barrel . The resistance to motion is , at any instant , equal to the weight of rope then hanging that already coiled having no effect . The point of the chain which we will use to define the motion is ...
Σελίδα 84
... rope . Then when the end is at A ' Resisting moment = w . A'Bxr . Therefore the moment varies as A'B , just as the re- sistance did ; and the curve of moment is a straight line . Let us then keep the same graphic figure and see what are ...
... rope . Then when the end is at A ' Resisting moment = w . A'Bxr . Therefore the moment varies as A'B , just as the re- sistance did ; and the curve of moment is a straight line . Let us then keep the same graphic figure and see what are ...
Σελίδα 91
... rope unwinds from one while winding on the other . Draw a curve of resistance for one lift , assuming equal lengths of rope to wind and unwind in the same time . Weight of rope 8 lbs . per yard . Find the work done in each third of the ...
... rope unwinds from one while winding on the other . Draw a curve of resistance for one lift , assuming equal lengths of rope to wind and unwind in the same time . Weight of rope 8 lbs . per yard . Find the work done in each third of the ...
Σελίδα 93
... to the end of the rope of a set of pulleys -- which agent is capable of changing the form of the energy to that of the work , then the ton weight must CHAPTER V SIMPLE MACHINES Object of a Machine Inclined Plane Wheel and Axle Screw.
... to the end of the rope of a set of pulleys -- which agent is capable of changing the form of the energy to that of the work , then the ton weight must CHAPTER V SIMPLE MACHINES Object of a Machine Inclined Plane Wheel and Axle Screw.
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Συχνά εμφανιζόμενοι όροι και φράσεις
action actual angular velocity applied axle balance beam bearing belt bending body boom called centre circle coefficient compression connecting rod consider constant crank effort crank pin curve cylinder diagram diameter distance draw effect elastic Energy exerted engine equal equation example feet flange foot length friction ft.-lbs girder given hence Hooke's Law inch joint length lift load mean mean effective pressure measure moment of inertia moving neutral axis obtain ordinates parallel piece piston position plane practically preceding pressure produced pull pulley radius radius of gyration relative motion represent resistance result revolution revolutions per minute right angles rivet rope rotating scale screw shaft shearing shown simply sliding pair speed steam stress stroke surface tension tons turning pair velocity ratio W₁ weight wheel whole
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Σελίδα 491 - Blackie. — GREEK AND ENGLISH DIALOGUES FOR USE IN SCHOOLS AND COLLEGES. By JOHN STUART BLACK.IE, Emeritus Professor of Greek in the University of Edinburgh. New Edition. Fcap. 8vo. 2s. 6d. Bryans. — LATIN PROSE EXERCISES BASED UPON CAESAR'S GALLIC WAR.
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Σελίδα 8 - THE BIBLE IN THE CHURCH. A Popular Account of the Collection and Reception of the Holy Scriptures in the Christian Churches. New Edition.