## Elements of Natural Philosophy, Part 1 |

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Results 1-5 of 36

Page 10

... direction of motion , the velocity will not be alteredand the only

acceleration will be to make the point move in a curve whose curvature is

proportional to the acceleration at each instant , and inversely as the square of

the velocity .

... direction of motion , the velocity will not be alteredand the only

**effect**of theacceleration will be to make the point move in a curve whose curvature is

proportional to the acceleration at each instant , and inversely as the square of

the velocity .

Page 18

The relative velocity of the second with regard to the first is to be found by

imagining impressed on both a southward velocity of fifty miles an hour ; the

velocity of ...

The relative velocity of the second with regard to the first is to be found by

imagining impressed on both a southward velocity of fifty miles an hour ; the

**effect**of this being to bring the first to rest , and to give the second a southwardvelocity of ...

Page 30

... of § 91 gives us at once the point 0 and the amount of rotation about it which

singly gives the same

one case of 6 . C ' exception , viz . when the rotations about 30 PRELIMINARY .

... of § 91 gives us at once the point 0 and the amount of rotation about it which

singly gives the same

**effect**as those about A and B in succession . But there isone case of 6 . C ' exception , viz . when the rotations about 30 PRELIMINARY .

Page 44

The

figure of any part . 144. The principal axes of a strain are the principal axes of the

ellipsoid into which it converts a sphere . The principal elongations of a strain ...

The

**effect**is , in this case , merely an alteration of dimensions without change offigure of any part . 144. The principal axes of a strain are the principal axes of the

ellipsoid into which it converts a sphere . The principal elongations of a strain ...

Page 55

In the case of a force distributed over a surface , it is frequently possible and

convenient to assume a single point and a single line , such that a certain force

acting at that point in that line would produce the same

produced .

In the case of a force distributed over a surface , it is frequently possible and

convenient to assume a single point and a single line , such that a certain force

acting at that point in that line would produce the same

**effect**as is reallyproduced .

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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 evidently experience 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 perpendicular plane portion position potential practical pressure principle problem produce projection proportional quantity radius reference relative remain respectively rest resultant right angles rigid rotation round sides simple solid space spherical square straight strain stress suppose surface theory turned uniform unit velocity weight whole wire