## Elements of Natural Philosophy, Part 1 |

### From inside the book

Results 6-10 of 56

Page 15

... measured by the angle described in

which would have been described in

instant in question were maintained constant for so long . In this respect the TT

process is ...

... measured by the angle described in

**unit**of time ; if variable , by the anglewhich would have been described in

**unit**of time if the angular velocity at theinstant in question were maintained constant for so long . In this respect the TT

process is ...

Page 16

The

explained in treatises on plane trigonometry ) that which subtends at the centre of

a circle ...

The

**unit**angular velocity is that of a point which describes , or would describe ,**unit**angle about a fixed point in**unit**of time . The usual**unit**angle is ( asexplained in treatises on plane trigonometry ) that which subtends at the centre of

a circle ...

Page 47

... its numerical measure greater than unity . In the diagram of $ 152 , the ratio of

DB to EB , or of EA to DA , is the ratio of the shear . 154. The amount of a shear is

the amount of relative motion per

... its numerical measure greater than unity . In the diagram of $ 152 , the ratio of

DB to EB , or of EA to DA , is the ratio of the shear . 154. The amount of a shear is

the amount of relative motion per

**unit**distance between planes of no distortion . Page 49

... per

any instant , the same ratio that the rate of acquisition of matter into that space

bears to the whole matter in that space . 165. Several references have been

made ...

... per

**unit**of time , in the fixed space in question , bears to the actual density , atany instant , the same ratio that the rate of acquisition of matter into that space

bears to the whole matter in that space . 165. Several references have been

made ...

Page 53

Then M = Vp ; if we so take our

body of

Average ( $ 26 ) density ; or , as it is usually called , the Mean density , of the

body ...

Then M = Vp ; if we so take our

**units**that**unit**of mass is that of**unit**volume of abody of

**unit**density . If the density be not uniform , the equation M = Vp gives theAverage ( $ 26 ) density ; or , as it is usually called , the Mean density , of the

body ...

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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