Elements of Natural Philosophy, Part 1 |
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Page 68
... Potential Energy ( § 239 ) , if its physical conditions are such that these forces will act equally , and in the same directions , if the motion of the system is reversed . Thus there may be no change of kinetic energy produced , and ...
... Potential Energy ( § 239 ) , if its physical conditions are such that these forces will act equally , and in the same directions , if the motion of the system is reversed . Thus there may be no change of kinetic energy produced , and ...
Page 69
... potential energy . Thus a weight requires work to raise it to a height , a spring requires work to bend it , air requires work to compress it , etc .; but a raised weight , a bent spring , compressed air , etc. , are stores of energy ...
... potential energy . Thus a weight requires work to raise it to a height , a spring requires work to bend it , air requires work to compress it , etc .; but a raised weight , a bent spring , compressed air , etc. , are stores of energy ...
Page 79
... potential energy , so that the potential energy , in every other configuration practically considered , shall be positive . 246. The potential energy of a conservative system , at any instant , depends solely on its configuration at ...
... potential energy , so that the potential energy , in every other configuration practically considered , shall be positive . 246. The potential energy of a conservative system , at any instant , depends solely on its configuration at ...
Page 80
... potential energy depending on the latter cause , will be a function of the distance between their centres and the in- clination of this line to the direction of the terrestrial magnetic force . 247. In nature the hypothetical condition ...
... potential energy depending on the latter cause , will be a function of the distance between their centres and the in- clination of this line to the direction of the terrestrial magnetic force . 247. In nature the hypothetical condition ...
Page 82
... potential and kinetic energies would be the same at all times : in other words , that every material system subject to no other forces than actions and reactions between its parts , is a dyna- mically conservative system , as defined ...
... potential and kinetic energies would be the same at all times : in other words , that every material system subject to no other forces than actions and reactions between its parts , is a dyna- mically conservative system , as defined ...
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Common terms and phrases
acceleration action amount angular velocity anticlastic applied attraction axes axis called Cambridge centre of gravity centre of inertia circle circular co-ordinates component configuration consider constant corresponding cosine couple curvature curve cylinder Demy 8vo denote density described diagram displacement distance edition elastic ellipse ellipsoid elongation equal equations equilibrium external point fixed point fluid forces acting friction geometrical given force Hence hodograph inclined infinitely small instant inversely kinetic energy length magnitude mass matter measured moment of inertia momentum moving normal P₁ P₂ parallel parallelogram particle path pendulum perpendicular portion position pressure principal axes principle produce projection proportional quantity radius radius of gyration reckoned resultant right angles rigid body rotation round shear shell simple harmonic motion solid solid angle space spherical surface spiral square straight line strain suppose tangent torsion uniform unit University of Cambridge vertical whole wire
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Page 69 - a viribus impressis cogitur statum suum mutare. Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
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