query: What is a wave exactly?
positive_passages.docid: 112514
positive_passages.text: What is a wave?
negative_passages.docid: 13727
negative_passages.text: Wave equation: $y=A \sin(\omega t-kx)$ or $y=A\sin(kx-\omega t)$?
negative_passages.docid: 34661
negative_passages.text: What sort of waves are produced by tuning forks? Is it transverse, longitudinal or both?
negative_passages.docid: 152064
negative_passages.text: Why does change in speed of a wave make it refract?
negative_passages.docid: 142781
negative_passages.text: What exactly is a number?
negative_passages.docid: 26638
negative_passages.text: Why do travelling waves continue after amplitude sum = 0?
negative_passages.docid: 145225
negative_passages.text: What is the amplitude of a light wave?
negative_passages.docid: 7749
negative_passages.text: Does wave interference happen only to same frequency waves?
negative_passages.docid: 118710
negative_passages.text: What really is reflection?
negative_passages.docid: 100964
negative_passages.text: What exactly is the "coherence" between waves?
negative_passages.docid: 86302
negative_passages.text: If light rays obey to the wave equation, why can they be thought as straight lines?
negative_passages.docid: 52418
negative_passages.text: What exactly is a quantum of light?
negative_passages.docid: 87595
negative_passages.text: Waves in water always circular
negative_passages.docid: 38770
negative_passages.text: What exactly is a current source?
negative_passages.docid: 127329
negative_passages.text: A problem about wave equation
negative_passages.docid: 18541
negative_passages.text: What does a de Broglie wave look like?
negative_passages.docid: 65463
negative_passages.text: Explanation: Simple Harmonic Motion