39. An observer stands 25 m behind a marksman practicing at a riflerange. The marksman fires the rifle horizontally, the speed of the bul-lets is 840 m/s, and the air temperature is 20 °C. How far does eachbullet travel before the observer hears the report of the rifle? Assumethat the bullets encounter no obstacles during this interval, and ignoreboth air resistance and the vertical component of the bullets' motion.

Speed: v=distancetime Given: Distance between marksman and observer, d=25 m Speed of bullet, vb=840…

Answered: 39. An observer stands 25 m behind a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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