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Get Full Access to Physics - 4 Edition - Chapter 25 - Problem 59
Get Full Access to Physics - 4 Edition - Chapter 25 - Problem 59

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Solved: Lasers for Fusion Two of the most powerful lasers

ISBN: 9780321611116 152

Solution for problem 59 Chapter 25

Physics | 4th Edition

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Problem 59

Lasers for Fusion Two of the most powerful lasers in the world are used in nuclear fusion experiments. The NOVAlaser produces 40.0 kJ of energy in a pulse that lasts 2.50 ns, and the NIF laser (under construction) will produce a 10.0-ns pulse with 3.00 MJ of energy. (a) Which laser produces more energy in each pulse? (b) Which laser produces the greater average power during each pulse? (c) If the beam diameters are the same, which laser produces the greater average intensity?

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Chapter 22: Magnetism Bar magnets have poles on opposite sides called north poles and south poles. They act as normal magnets (like attracts like, opposites repel) Magnetic field lines exit from the north pole and enter from the south. F= |q|vBsin(thet) Magnitude of the Magnetic Force: o SI unit is newton (N) o q is the charge o v is the velocity o B is the magnetic field Right hand rule o Source: Google images/ boundless.com Since the magnetic force is always perpendicular to the direction of motion, the path of a particle is always circular. o The radius is travels: r=(mv)/( |q|B) Magnetic force on a current carrying wire: F=ILBsin (

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