火花
发表于 2025-3-23 10:37:22
Resonance, resistance in electrical circuits. The most important quantity to calculate is the power absorbed from the driving force by the oscillator. As a function of frequency, the power absorbed is a very characteristic ., or ., with a maximum at the frequency of the undamped oscillator. We shall finally l
屈尊
发表于 2025-3-23 14:04:08
Equations for Waves,t we did not know the constant of proportionality, which clearly depends on the properties of the medium through which the wave is travelling. Similarly, we need an equation of motion to deal with . of various kinds. For example, in the microwave tunnelling experiment described in section 2.7, altho
不能妥协
发表于 2025-3-23 21:18:56
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机密
发表于 2025-3-23 23:27:51
The Simple Harmonic Oscillator and Superposition of Vibrations, the important case of light travelling through a vacuum, however, we must interpret ‘displacement’ differently. It will be recalled that light is not propagated by means of vibrations of a jelly-like aether; we must simply regard the displacement as an oscillating electric field, with which is associated an oscillating magnetic field.
领导权
发表于 2025-3-24 03:28:06
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Misgiving
发表于 2025-3-24 07:21:55
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结构
发表于 2025-3-24 14:13:48
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细微差别
发表于 2025-3-24 18:48:08
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Processes
发表于 2025-3-24 22:03:40
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议程
发表于 2025-3-25 01:54:43
Waves and Particles,ve type of detector known as a photomultiplier tube (described in Wehr and Richards, ., 2nd edn, Addison-Wesley, section 10.5), a beam of low-intensity X-rays is detected as a sequence of isolated sharp pulses, such as would be produced by a stream of particles arriving at the detector. As was point