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 180-20(a magnetar). During 0.20 s, this star released as much energy as our sun does in 250000 years. If P is the average power output of our sun, what was the average power output (in terms of P) of this magnetar?

## Illustrate how fast will he be moving backwardAn 77 kg quarterback jumps straight up in the air right before throwing a 0.43 kg football horizontally at 15 m/s. Illustrate how fast will he be moving backward just after releasing the ball? |

## What is the average induced emfA 45 cm diameter circular loop of wire is in a 0.525 T magnetic field oriented perpendicular to the plane of the loop. what is the average induced emf |

## Evaluate the speed of the large cart after the collisionA small, 300 cart is moving at 1.90 on an air track when it collides with a larger, 1.00 cart at rest. After the collision, the small cart recoils at 0.890. Evaluate the speed of the large cart after the collision? |

## Determine the impulse given to the ballA m = 3 kg steel ball strikes a wall with a speed of v = 10 m/s at an angle of ?i = 60? with the surface. Determine the impulse given to the ball |

## Find the maximum acceleration of the eardrumWhen responding to sound, the human eardrum vibrates about its equilibrium position. Suppose an eardrum, is vibrating with an amplitude of 6.3X10^-7m, what is the maximum acceleration of the eardrum |

## Establish angles subtended by the moon and the sunEstablish angles subtended by the moon and the sun |

## Find the magnitude a of resultant acceleration of a pointA uniform disk with mass 39.5kg and radius 0.250 m is pivoted at its center about a horizontal, frictionless axle that is stationary. What is the magnitude a of the resultant acceleration of a point on the rim of the disk |

## What is the temperature of the mixturean insulated container is filled with a mix of 400 g of water at 20 C and 60 g of ice at 0 C. assuming negligible heat is exchanged with the container, what is the temperature of the mixture when it reaches thermal equilibrium. |

## Find the birds speed immediately after swallowingA 310g bird flying along at 6.2m/s sees a 8.0g insect heading straight toward it with a speed of 31m/s, What is the bird's speed immediately after swallowing |

## What will the traveler weigh on another planetA space traveler weighs 580 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth? |

## What is the tension in the vineWhat is the tension in the vine if Jill, whose mass is 59kg , is moving at 2.5m/s when the vine is vertical |

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