A College Text-book of PhysicsH. Holt, 1911 - 692 pages |
From inside the book
Results 1-5 of 80
Page 32
... turn it whatever . The moment of a F C FIG . 21 . R H force to turn a body about an axis de- pends therefore both on the amount of the force and the distance of its line of action from the axis . Let x be the perpendicular dis- tance ...
... turn it whatever . The moment of a F C FIG . 21 . R H force to turn a body about an axis de- pends therefore both on the amount of the force and the distance of its line of action from the axis . Let x be the perpendicular dis- tance ...
Page 48
... turn in brass boxes , the friction between the brass and steel being less than it would be between two parts of steel . Rolling friction is very much less than sliding friction , therefore wheels are used on carriages , etc. It depends ...
... turn in brass boxes , the friction between the brass and steel being less than it would be between two parts of steel . Rolling friction is very much less than sliding friction , therefore wheels are used on carriages , etc. It depends ...
Page 79
... turns per second , neglecting the effect of gravity in the circular motion ? 2. A mass of 50 grms . has a velocity of 750 cms . per sec . in a circle of radius 60 cms . Find the acceleration in amount and direction and centripetal force ...
... turns per second , neglecting the effect of gravity in the circular motion ? 2. A mass of 50 grms . has a velocity of 750 cms . per sec . in a circle of radius 60 cms . Find the acceleration in amount and direction and centripetal force ...
Page 89
... turns in time t . @ 1 = angular velocity at beginning of interval t . @angular velocity at end of interval t . A = angular acceleration . @ = VzTV 1 t A = t a t2 8 = tor s v1t + . 2 2 2 as = v22 - v12 . ( 1 ) A 2 ( 3 ) α- ( w ) + w1 ...
... turns in time t . @ 1 = angular velocity at beginning of interval t . @angular velocity at end of interval t . A = angular acceleration . @ = VzTV 1 t A = t a t2 8 = tor s v1t + . 2 2 2 as = v22 - v12 . ( 1 ) A 2 ( 3 ) α- ( w ) + w1 ...
Page 90
... turns will it have made in 10 sec . from the start ? 6. How many revolutions will a body make starting from rest with angular acceleration 4 before it will be revolving at the rate of 20 turns per sec . ? 7. What is the linear velocity ...
... turns will it have made in 10 sec . from the start ? 6. How many revolutions will a body make starting from rest with angular acceleration 4 before it will be revolving at the rate of 20 turns per sec . ? 7. What is the linear velocity ...
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Common terms and phrases
acceleration alternating current ampères angular angular velocity armature axis ball beam body Boyle's law bulb calorimeter cell center of pressure centimeter circuit coil compressed condenser conductor connected constant copper cord curve cylinder density diagram direction discharge displacement distance dynes earth elasticity electric electromotive force electroscope energy equal equilibrium flow focal length friction galvanometer gases glass gram gravity 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 number of lines parallel particles pass pendulum pipe piston placed plane plate polarized pole pressure prism radiation rays reflected refracted resistance right angles rotation shown in figure side spectrum stream substance surface temperature tones tube vapor velocity vessel vibration volume wave length weight wire
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.