1. A value of 0 means that a material is a perfectly elastic solid. 2. The same is true of perfectly elastic billiard balls on a frictionless surface. 3. The law assumes that the cornea is infinitely thin, perfectly elastic , and perfectly flexible. 4. Rubber is not perfectly elastic so it displays elastic hysteresis. 5. Joule's ideas required one to believe that the collisions of molecules were perfectly elastic . 6. Some large-scale interactions like the slingshot type gravitational interactions between satellites and planets are perfectly elastic . 7. The two simplest methods for deciding on a new velocity are perfectly elastic collisions and inelastic collisions. 8. [This assumes that the ball is struck head-on by the bat, and that the collision is perfectly elastic . 9. For a PC firm this equilibrium condition occurs where the perfectly elastic demand curve equals minimum average cost. 10. If the collision is perfectly elastic , then the distance traveled is, of course, infinity, which can never happen.
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