Elements of Natural Philosophy, Volume 1 |
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Page 71
... centre of inertia of any number of mutually influencing bodies , if in motion , continues moving uniformly in a straight line , unless in so far as the direction or velocity of its motion is changed by forces acting mutually between ...
... centre of inertia of any number of mutually influencing bodies , if in motion , continues moving uniformly in a straight line , unless in so far as the direction or velocity of its motion is changed by forces acting mutually between ...
Page 72
... inertia of the body at the point in question . When the moments of inertia about two of these are equal , the ... centre at the centre of inertia , and its three principal diameters coincident with the three principal axes through these ...
... inertia of the body at the point in question . When the moments of inertia about two of these are equal , the ... centre at the centre of inertia , and its three principal diameters coincident with the three principal axes through these ...
Page 75
... centres and the in- clination of this line to the direction of the terrestrial magnetic force . 247. In nature the ... centre of inertia ; because as long as these periods differ , the tidal action of the earth's surface must keep ...
... centres and the in- clination of this line to the direction of the terrestrial magnetic force . 247. In nature the ... centre of inertia ; because as long as these periods differ , the tidal action of the earth's surface must keep ...
Page 76
... centre ; and must be such as to impede the earth's rotation as long as this is performed in a shorter period than ... inertia of the moon and earth relatively to their common centre of inertia , as is lost by the earth's rotation about ...
... centre ; and must be such as to impede the earth's rotation as long as this is performed in a shorter period than ... inertia of the moon and earth relatively to their common centre of inertia , as is lost by the earth's rotation about ...
Page 79
... centre of inertia only is fixed , since , when its longest dimension is small in comparison with the earth's radius , gravity is , as we shall see , ap- proximately equivalent to a single force through this point . But if , when ...
... centre of inertia only is fixed , since , when its longest dimension is small in comparison with the earth's radius , gravity is , as we shall see , ap- proximately equivalent to a single force through this point . But if , when ...
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Common terms and phrases
acceleration action amount angular velocity anticlastic attraction axis called centimetre centre of gravity centre of inertia circle circular co-ordinates component configuration consider constant cosine couple curvature curve cylinder denote density described diagram displacement distance ellipse ellipsoid elongation equal equations equilibrium external point finite fixed point flexure fluid forces acting friction geometrical given force Hence hodograph horizontal infinitely small instant inversely kinetic energy length magnitude mass matter measured moment of inertia momentum moving normal section P₁ P₂ parallel parallelogram of forces particle path pendulum perpendicular plane perpendicular portion position potential pressure principal axes principle produce projection proportional quantity radius radius of gyration reckoned rectangular right angles rigid body rotation round shear shell sides simple harmonic motion solid angle space spherical surface spiral square straight line strain stress suppose tangent theorem theory tion torsion uniform unit vertical whole wire