Question 14 What are the P = x x F A=19r 2 explosion can The Shockwave produced measured uniks for y عنا by sensitive P= Pressure un units of Nm² F = force in writs of N r=raduns in units of m M = is add dimensonters constant

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Q: t big deop of ladie Ru foumed 0 deehlele ofwate The radise of he deoplet aoill be @1OR 6 R R

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Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.