## A Text-book of General Physics for the Use of Colleges and Scientific Schools |

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Contents

450 | |

461 | |

486 | |

495 | |

506 | |

514 | |

540 | |

550 | |

172 | |

280 | |

280 | |

234 | |

244 | |

298 | |

309 | |

319 | |

346 | |

347 | |

357 | |

385 | |

406 | |

415 | |

438 | |

555 | |

576 | |

591 | |

599 | |

609 | |

627 | |

641 | |

659 | |

665 | |

680 | |

703 | |

714 | |

727 | |

753 | |

### Other editions - View all

### Common terms and phrases

amount angle appears arranged axis body called charge circuit closed coil color condition conductor connected considerable constant definite denoted density depending determined diameter direction discharge distance earth effect electricity energy equal equation example experiment fall field follows force given glass greater heat increase intensity iron known length lens less light liquid lower magnetic mass means measured mercury metal method molecules motion moving object observed obtained particles pass period placed plane plate pole portion position potential pressure produced quantity reflection refraction represented resistance respect result rise rotation scale seen separated shown shows side solution sound substance Suppose surface surface tension temperature tion tube unit varies velocity vessel vibration volume wave-length waves weight wire

### Popular passages

Page 392 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10' units of resistance of the CGS system of electro-magnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice 14.4521 grams in mass, of a constant crosssectional area and of the length of 106.3 centimeters.

Page 397 - As a unit of current, the international ampere, which is one-tenth of the unit of current of the CGS system of electro-magnetic units, and which is represented sufficiently well for practical use by the unvarying current, which, when passed through a solution of nitrate of silver in water in accordance with accompanying specifications,1 deposits silver at the rate of o.ooi 1 1 8 of a gramme per second.

Page 83 - The polar moment of inertia of an area with respect to any axis is equal to the sum of the moments of inertia of the area with respect to any two rectangular axes in the plane of the area which intersect on the given polar axis.

Page 519 - ... Pipe. A case of special interest is found in the reflection of a sound wave at the end of a tube or pipe in which it is traveling. If the reflections occur in a closed pipe, against the solid end of the pipe, the direction of the wave is reversed, but the character of the disturbance is not reversed, a condensation is reflected as a condensation and a rarefaction as a rarefaction. This is expressed by saying that at the closed end of a pipe the sound wave is reflected with change of sign in the...

Page 93 - Hence the moment of inertia of a body with respect to any axis, is equal to its moment of inertia with respect to...

Page 406 - ... provided the moment of the magnet be equal to the strength of the current multiplied by the area of the circuit,4 and its north pole be so placed that the direction of the axis of the magnet (from S-pole to N-pole), and the direction in which the...

Page 535 - AD/AO AD 434. Refraction of light by glass. We may also show that a beam of light is refracted in passing from air into glass. PRACTICAL PHYSICS passes into the glass. It will also be seen that the angle of incidence is equal to the angle of reflection, but is greater than the angle of refraction. We may measure the perpendicular distances from the ends of the incident and refracted rays to the normal OO, and compute the index of refraction for glass and air. Ordinary crown glass bends a ray of light...

Page 269 - Hence the efficiency of a reversible engine is independent of the nature of the working substance...

Page 119 - The specific gravities of all bodies that sink in water may be found first by weighing the body in air and then in water, and dividing the weight in air by the loss of weight in water.

Page 93 - Show that the moment of inertia of a body about any axis is equal to the moment of inertia about a parallel axis through the center of mass plus the product of the mass of the body and the square of the distance between the axes.