The Popular Educator, Τόμος 4John Cassell, 1854 |
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Σελίδα 36
... angles of the parallelogram of forces . Thus , if P and a represent any two forces in numbers , and a denote the angle between their directions , then their resultant R will be represented in num- bers by the following formula : — cos R ...
... angles of the parallelogram of forces . Thus , if P and a represent any two forces in numbers , and a denote the angle between their directions , then their resultant R will be represented in num- bers by the following formula : — cos R ...
Σελίδα 45
... angle between the vertical lincs must not be neglected . Thus , in the English measurement of an arc of the meridian , the angle between the vertical lines at Dunnose , in the Isle of Wight , and at Clifton near Doncaster , was found to ...
... angle between the vertical lincs must not be neglected . Thus , in the English measurement of an arc of the meridian , the angle between the vertical lines at Dunnose , in the Isle of Wight , and at Clifton near Doncaster , was found to ...
Σελίδα 49
... angle is greater than either of the interior opposite angles . In fig . 16 , let A B C be a triangle , and let its side в c be pro- duced to D. The exterior angle A C D is greater than either of the interior opposite angles C B A and ...
... angle is greater than either of the interior opposite angles . In fig . 16 , let A B C be a triangle , and let its side в c be pro- duced to D. The exterior angle A C D is greater than either of the interior opposite angles C B A and ...
Σελίδα 50
A B is equal to the angle A DE , that is , the exterior angle equal to the interior and opposite angle ; but by Prop . XVI . the exterior angle is greater than the interior and opposite angle ; therefore , the angle A E B is both equal ...
A B is equal to the angle A DE , that is , the exterior angle equal to the interior and opposite angle ; but by Prop . XVI . the exterior angle is greater than the interior and opposite angle ; therefore , the angle A E B is both equal ...
Σελίδα 61
... angle less than a right angle . In proportion to the smallness of the angle between these planes , so is the decrease of the velocity of a body which descends along the inclined plane . Thus , let AB , fig . 12 , represent an inclined ...
... angle less than a right angle . In proportion to the smallness of the angle between these planes , so is the decrease of the velocity of a body which descends along the inclined plane . Thus , let AB , fig . 12 , represent an inclined ...
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acid adjectives adverbs ammonia antimony aorist apparatus arsenic atmosphere barometer body bottle called Cash Account CASSELL'S compound contains Cotton Account dative denotes density direction employed English equal example exercise exterior angle Florence flask force fraction French genitive given glass grave accent gravity greater Greek hence hydrogen inches Italian language Latin latter LESSONS liquid London and Westminster manganese marked means mercury metal motion nitric acid noun object orifice oxygen pá-dre participle particles Perfect Tense piston Pluperfect Tense plural precipitate preposition present pressure pronounced quantity qué-sto remark right angles rocks scale sentence side solution sound straight line student sulphur sulphuret surface syllable Tense thou tion triangle tube ú-na University of Pavia velocity verb vessel vowel weight werde Westminster Bank words würde zinc ας δε εν εστιν ης Οἱ ον ου