By Raymond A. Serway
Whereas physics can look tough, its actual caliber is the sheer simplicity of primary actual theories--theories and ideas which may enhance your view of the realm round you. collage PHYSICS, 9th version, presents a transparent process for connecting these theories to a constant problem-solving technique, rigorously reinforcing this technique during the textual content and connecting it to real-world examples. for college kids making plans to take the MCAT examination, the textual content contains unique try out prep and evaluate instruments that can assist you arrange.
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Extra resources for College Physics, Volume 2
The mathematical form is the same, with the masses m1 and m 2 in Newton’s law replaced by q 1 and q 2 in Coulomb’s law and with Newton’s constant G replaced by Coulomb’s constant ke . There are two important differences: (1) electric forces can be either attractive or repulsive, but gravitational forces are always attractive, and (2) the electric force between charged elementary particles is far stronger than the gravitational force between the same particles, as the next example shows. 6 Two point charges separated by a distance r exert a force on each other given by Coulomb’s law.
841 Tracking information on a CD, p. 841 Polarizing microwaves, p. 844 Polaroid sunglasses, p. 846 Finding the concentrations of solutions by means of their optical activity, p. 847 Liquid crystal displays (LCDs), pp. 847–849 xxv Chapter 25 The camera, pp. 859–860 The eye, pp. 860–862 Using optical lenses to correct for defects, p. 862 Prescribing a corrective lens for a farsighted patient, pp. 863–864 A corrective lens for nearsightedness, pp. 863–865 Vision of the invisible man, p. 864 Cat’s eyes, p.
2] This number can be rounded, depending on the accuracy of other quantities in a given problem. We’ll use either two or three significant digits, as usual. ϩ ϩ ϩ ϩϪ ϪϪϩ ϩϪ Ϫ ϩ Ϫ ϩ Ϫ Ϫ ϩ ϩ ϩ The magnitude of the electric force F between charges q 1 and q 2 separated by a distance r is given by F 5 ke 517 The remaining electrons redistribute uniformly, and there is a net uniform distribution of positive charge on the sphere’s surface. 5 (a) A charged balloon is brought near an insulating wall. (b) A charged rod is brought close to bits of paper.