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" There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel. "
The Civil-engineer & Surveyor's Manual - الصفحة 2
بواسطة Michael McDermott - 1879 - عدد الصفحات: 586
عرض كامل - لمحة عن هذا الكتاب

An Elementary Course of Instruction for Mine Foremen and Pit Bosses

Floyd Davis - 1900 - عدد الصفحات: 148
...: w :: h : c. Hence if a - 'wer and weight acting on a wheel and axle are in equilibrium, the pjwer is to the weight as the radius of the axle is to the radius of the wheel. Q. 143. If a power of 80 pounds, acting on a wheel whose radius is 30 inches, balances a weight of...

Soulé's Philosophic Practical Mathematics: Designed for the Use of ...

George Soulé - 1910 - عدد الصفحات: 1042
...radius of the wheel. Hence, Pxae-Wxob. P : W = cb : a c. That it to say, the icheel and axle are in equilibrium, when the power is to the weight as the...radius of the axle is to the radius of the wheel. In one revolution of the machine, the power moves through a space equal to the circumference of the...

Plane Geometry

William Betz, Harrison Emmett Webb - 1912 - عدد الصفحات: 368
...physics that — = ; that is, the force to be applied in order to lift a weight is related to that weight as the radius of the axle is to the radius of the wheel. If OB -\OA, how is P related to W1 Find P, „ if W = 100 Ib. and OA = 2 OB. ° W 12. If the weight...

Plane Geometry

William Betz, Harrison Emmett Webb, Percey Franklyn Smith - 1912 - عدد الصفحات: 360
...— = — — ; \\ OA that is, the force to be applied in order to lift a weight is related to that weight as the radius of the axle is to the radius of the wheel. If OB = |- OA, how is P related to W1 Find P, if W= 100 Ib. and OA = 2 OB. 12. If the weight in Ex....

Plane and Solid Geometry

William Betz - 1916 - عدد الصفحات: 536
...that — = — — ; that is, the force to be applied in order to lift a weight is related to that weight as the radius of the axle is to the radius of the wheel. If OE = \OA, how is P related to Wi Find P, . _ if W = 100 Ib. and 0/1=2 OB. ° W 12. If the weight...

School Work, المجلد 8

1909 - عدد الصفحات: 498
...FP=i2in. and FW . = 3in. PXFP = 4& and W XFW = 48. therefore PX FP= WX FW. Power and weight will balance when the power is to the weight as the radius of the axle is to the radius of the wheel. Pra-ctical Examples. — Dumb-waiter ; capstan ; windlass ; belted and geared wheels. IV. THE INCLINED...

Plane Geometry

William Betz, Harrison Emmett Webb, Percey Franklyn Smith - 1912 - عدد الصفحات: 356
...that — — — — ; that is, the force to be applied in order to lift a weight is related to that weight as the radius of the axle is to the radius of the wheel. If OB = -J- 0/1, how is P related to IF? Find P, .._ if W = 100 Ib. and OA = 2 OB. ° W 12. If the...

The Cambridge University Calendar

University of Cambridge - 1845 - عدد الصفحات: 492
...Mechanical Powers. Definition of Wheel and Axle. Prop. 10. There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel. Definition of Pulley. Prop. 11. In the single moveable pulley where the...

Calendar

University of Cambridge - 1855 - عدد الصفحات: 682
...Mechanical Poweri. Definition of Wheel and Axle. Prop. 10. There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel. Definition of Pulley. Prop. 11. In the single moveable pulley where the...

Calendar

University of Cambridge - 1838 - عدد الصفحات: 496
...Mechanical Powers, Definition of Wheel and Axle. Prop. 10. There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel. Definition of Pulley. Prop. 11. In the single moveable pulley where the...




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