## Elements of Natural Philosophy |

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Page 6

... if for such a

instanta definite velocity for any moving point , is evident to all , and is matter of

everyday conversation . Thus , ą railway train , after starting , gradually increases

its ...

... if for such a

**period**it kept its velocity unchanged . 27 . “ That there is at everyinstanta definite velocity for any moving point , is evident to all , and is matter of

everyday conversation . Thus , ą railway train , after starting , gradually increases

its ...

Page 9

Acceleration is variable when the point ' s velocity does not receive equal

increments in successive equal

increment of velocity , which would have been generated in a unit of time had the

...

Acceleration is variable when the point ' s velocity does not receive equal

increments in successive equal

**periods**of time . It is then measured by theincrement of velocity , which would have been generated in a unit of time had the

...

Page 14

It consists in drawing a curve , which may be called the tidal hodograph with

reference to any point of a chart for which the tidal currents are to be specified

throughout the chief tidal

are ...

It consists in drawing a curve , which may be called the tidal hodograph with

reference to any point of a chart for which the tidal currents are to be specified

throughout the chief tidal

**period**( twelve lunar hours ) . Numbers from I . to XII .are ...

Page 20

Epoch in angular measure is the angle described on the circle of reference in the

measure . ] The

Epoch in angular measure is the angle described on the circle of reference in the

**period**of time defined as the epoch . [ In the formula , e is the epoch in angularmeasure . ] The

**Period**of a simple harmonic motion is the time which elapses ... Page 21

( In the formula . the

instant is an expression used to designate the part of its whole

has reached . It is borrowed from the popular expression phases of the moon .

( In the formula . the

**period**is 2I ] The Phase of a simple harmonic motion at anyinstant is an expression used to designate the part of its whole

**period**which ithas reached . It is borrowed from the popular expression phases of the moon .

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### Common terms and phrases

acceleration according acting action amount angle angular applied attraction axes axis body called centre centre of inertia circle component condition consider constant corresponding couple course curvature curve denote density described determined direction displacement distance divided effect elastic elements energy equal equations equilibrium expression figure fixed fluid force friction give given gravity harmonic Hence important increase infinitely small instant interval kinetic length less mass matter mean measured method motion moving natural normal observation opposite parallel particle passing path period perpendicular plane portion position potential practical pressure principle produce projection proportional quantity radius reference relative remain remarkable resistance respectively rest resultant right angles rigid rotation round sides simple solid space spherical square straight strain stress suppose surface theory turned uniform unit velocity vertical weight whole wire