A College Text-book of PhysicsH. Holt, 1911 - 692 pages |
From inside the book
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Page 7
... represents about the average length of the early yard measures that were in use , which were probably adopted as being half the distance which a man can stretch with his arms . 1 yard 1 foot = = 91.43835 cm . 30.47945 cm . 13. Unit of ...
... represents about the average length of the early yard measures that were in use , which were probably adopted as being half the distance which a man can stretch with his arms . 1 yard 1 foot = = 91.43835 cm . 30.47945 cm . 13. Unit of ...
Page 10
... represented by a line AB is not the same as that represented by BA , one is the opposite of the other , or AB - BA . This will be evident if AB represent a displacement from A to B. A dis- placement BA will exactly undo what the other ...
... represented by a line AB is not the same as that represented by BA , one is the opposite of the other , or AB - BA . This will be evident if AB represent a displacement from A to B. A dis- placement BA will exactly undo what the other ...
Page 11
... representing a vector is therefore commonly represented with an arrow - head indicating its positive direction . 19. Composition of Displacements . - If a man in a railway car were to go directly across from one side to the other , say ...
... representing a vector is therefore commonly represented with an arrow - head indicating its positive direction . 19. Composition of Displacements . - If a man in a railway car were to go directly across from one side to the other , say ...
Page 12
... represented in amount and direction by the several parts of the broken line . 22. Resolving of Vectors . - What has been just said of the resolving of a displacement into components is equally true of the resolving of any other vectors ...
... represented in amount and direction by the several parts of the broken line . 22. Resolving of Vectors . - What has been just said of the resolving of a displacement into components is equally true of the resolving of any other vectors ...
Page 14
... represented by the vector AD , which is found by measurement ( using the same scale as in laying off AB and BD ) to be 76 feet per second , and this is the resultant speed of the ball relative to the earth . If the angle between AB and ...
... represented by the vector AD , which is found by measurement ( using the same scale as in laying off AB and BD ) to be 76 feet per second , and this is the resultant speed of the ball relative to the earth . If the angle between AB and ...
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Common terms and phrases
acceleration alternating current amount ampères angular armature axis ball beam body Boyle's law bulb calorimeter carbon cause cell centimeter circuit coil color condenser conductor connected constant copper cord crystal curve density diagram difference of potential direction disc discharge displacement distance dynes earth electric electrode electromotive force electroscope energy equal equilibrium flow focal length friction galvanometer gases glass gram heat induction iron J. J. Thomson lens Leyden jar light lines of force liquid magnetic field mass measured mercury metal mirror molecules moment of inertia motion moving needle negative number of lines parallel particles pass pipe placed plane plate polarized pole positive charge pressure prism radiation rays reflected refracted resistance right angles rotation shown in figure side sound spectrum substance surface temperature tones tube vapor velocity vessel vibration volts volume wave length weight wire zinc
Popular passages
Page 275 - It is hardly necessary to add that anything which any insulated body or system of bodies can continue to furnish without limitation cannot possibly be a material substance ; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner in which heat was excited and communicated in these experiments except it be motion.
Page 574 - 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.
Page 103 - The squares of the periodic times of the planets are proportional to the cubes of their mean distances from the Sun.
Page 118 - Archimedes stated that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid.
Page 165 - We conclude that equal volumes of different gases at the same temperature and pressure contain equal numbers of molecules.
Page 7 - The straight line or distance between the centres of the transverse lines in the two gold plugs in the bronze bar deposited in the Office of the Exchequer...
Page 272 - Hypothesis states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
Page 22 - Change of momentum is proportional to the force and to the time during which it acts, and is in the same direction as the force; (3) To every action there is an equal and opposite reaction.
Page 32 - ... the perpendicular distance from the axis to the line of action of Axis FIG.
Page 179 - Kelvin has shown that if a drop of water were magnified to the size of the earth the molecules of water would be of a size intermediate between that of a cricket ball and of a marble.