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Physics / University Physics 13 / Chapter 6 / Problem 51E

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

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Magnetar. On December 27, 2004, astronomers observed the

Chapter 3, Problem 51E

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QUESTION:

Magnetar. ?On December 27, 2004, astronomers observed the greatest flash of light ever recorded from outside the solar system. It came from the highly magnetic neutron star SGR 1806-20 (a ?magnetar?). During 0.20 s, this star released as much energy as our sun does in 250,000 years. If P is the average power output of our sun, what was the average power output (in terms of P) of this magnetar?

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QUESTION:

Magnetar. ?On December 27, 2004, astronomers observed the greatest flash of light ever recorded from outside the solar system. It came from the highly magnetic neutron star SGR 1806-20 (a ?magnetar?). During 0.20 s, this star released as much energy as our sun does in 250,000 years. If P is the average power output of our sun, what was the average power output (in terms of P) of this magnetar?

ANSWER:

Solution 51 E Step 1: Data given Time of flash t = 0.20 s Energy released by sun P = P × 25

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