A Text-book of PhysicsLongmans, Green, and Company, 1902 - 951 páginas |
Dentro del libro
Resultados 1-5 de 98
Página 21
... weight of a square centi- metre of the same card or foil is then measured , and from this the area of the figure calculated from its weight . Another method in common use is to trace the figure on paper ( called curve or squared paper ) ...
... weight of a square centi- metre of the same card or foil is then measured , and from this the area of the figure calculated from its weight . Another method in common use is to trace the figure on paper ( called curve or squared paper ) ...
Página 84
... weight of ) one milligram ( grm . ) , so that approximately an erg of work is done when a milligram is raised through one centimetre . Since an English penny piece has a mass of about 9450 milligrams , and the average height of a table ...
... weight of ) one milligram ( grm . ) , so that approximately an erg of work is done when a milligram is raised through one centimetre . Since an English penny piece has a mass of about 9450 milligrams , and the average height of a table ...
Página 85
... weight of a gram is equal to about 981 dynes . In the foot - pound - second system g is about 32 feet / sec2 , so that the weight of a pound is about 32 poundals . A system of units is often employed in which the unit of force is taken ...
... weight of a gram is equal to about 981 dynes . In the foot - pound - second system g is about 32 feet / sec2 , so that the weight of a pound is about 32 poundals . A system of units is often employed in which the unit of force is taken ...
Página 86
... weight of ) a gram or pound , as the case may be . For comparatively rough measurements , however , in which the change in the value of the gravitational attraction may be neglected , there is no doubt it is often convenient to use the ...
... weight of ) a gram or pound , as the case may be . For comparatively rough measurements , however , in which the change in the value of the gravitational attraction may be neglected , there is no doubt it is often convenient to use the ...
Página 89
... weight may pass over a pulley , and the other end be attached to a bucket of water . If the bucket of water is lighter than the weight , then during its fall it will raise up the bucket , and hence do work . Again , a body which is in ...
... weight may pass over a pulley , and the other end be attached to a bucket of water . If the bucket of water is lighter than the weight , then during its fall it will raise up the bucket , and hence do work . Again , a body which is in ...
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Términos y frases comunes
acceleration amplitude axis Boyle's law called calorimeter carbon dioxide centimetre centre Charles's laws circle coefficient component constant convex lens curve cylinder density direction displacement distance equal equation equilibrium force acting fork frequency friction gases given glass gram gravity Hence hydrogen incident increase interval kinetic energy length lens light liquid magnitude mass means measured medium mercury mirror molecules motion moving nodal lines obtained overtones parallel particle pass pendulum period piston plane position potential energy poundal pressure produced quantity of heat radiation radius ratio reflected rays refractive index represent resultant right angles rotation scale shown in Fig solid sound-waves specific heat speed sphere square centimetre straight line string substance suppose surface surface tension T₁ temperature tone tube unit vapour velocity of sound vertical vessel vibrations volume wave-front wave-length waves weight
Pasajes populares
Página 580 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.