Elementary Lessons in Physics; Mechanics (Including Hydrostatics) And Light
Elementary Lessons in Physics; Mechanics (Including Hydrostatics) And Light
Hall, Edwin Herbert, 1855-
The book Elementary Lessons in Physics; Mechanics (Including Hydrostatics) And Light was written by author Hall, Edwin Herbert, 1855- Here you can read free online of Elementary Lessons in Physics; Mechanics (Including Hydrostatics) And Light book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Elementary Lessons in Physics; Mechanics (Including Hydrostatics) And Light a good or bad book?
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No. 5 has the same length as No. 1. ) THE PENDULUM. 67 The five pendulum balls and the bar B, prepared for re- ceiving the threads, will together be called No. XXI. We will first set No. 1 and No. 2 swinging at the same instant and with the same width, or length, of swing, and watch them both for a little while until we see that under these circumstances they keep together, No. 1 taking just as long a time for one swing, or for any number of swings, as No. 2 does. Then draw the ball of No. 1 ab...out one inch aside from its position of rest, and the ball of No. 2 about fifteen inches aside from its position of rest, and release both balls at the same instant. The class will watch the two for some little time, a quarter of a minute or longer, and see whether at the end of that time they begin each swing together, as they did at first. If they do not, observe which one has gained upon the other, and, after one or two repetitions of the experiment, write down an answer to the question which the experiment was intended to meet.
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