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A gamma-ray telescopes intercept a pulse of gamma radiation from magenta, a type of star with a spectacularly large magnetar field. The pulse lasts 0.30 seconds and delivers 7.8 x 10-6 Joule of energy perpendicularly to the 98 m2 surface area of the telescope's detector. The magnetar is thought to be 5.54 x 1020 meter (about 59000 light-years) from earth, and to have a radius of 9.3 x 103 meter. Determine the magnitude of the rms magnetic field of the gamma-ray pulse at the surface of the magnetar, assuming that the pulse radiates uniformly outward in all directions.
A battery with an emf of 12.0 V shows a terminal voltage of 11.5V when operating in a circuit with two lightbulbs rated at 3.0 W, What is the battery's internal resistance
A ball is thrown toward a cliff of height h with a speed of 29m/s and an angle of 60? ^\circ above horizontal. It lands on the edge of the cliff 3.5s later. How high is the cliff
In a Compton scattering experiment, an x-ray photon scatters through an angle of 17.4° from a free electron that is initially at rest. Calculate the wavelength of the incident photon
Dan is moving a duffel bag across a carpeted floor that weighs as much as he does (60kg). He pulls with a force of 200N to get the bag to start moving. What is the coefficient of static friction between the duffel bag and the carpet?
a 2 mev gamma-ray photon is incident on a detector undergoes two sequential compton scatterings and then escapes. if
An object with total mass mtotal = 14 kg is sitting at rest when it explodes into three pieces. One piece with mass m1 = 4.6 kg, What is the magnitude of the velocity of the center of mass of the pieces after the collision
At the same instant that you fire a bullet horizontally from agun, you drop a bullet from the height of the barrel. which bullet hits the ground first.Explain
Given that the rotational constant of HF is 20.5cm-1, calculate the bond length of HF molecule
A square loop consists of a single turn with a resistance of 6.00 Ω. The loop has an area of 600 cm2, and has a uniform magnetic field passing through it that is directed out of the page. The loop contains a 12-volt battery, connected as shown in ..
A 2.6-kg cart is rolling along a frictionless, horizontal track towards a 1.9-kg cart that is held initially at rest. What is the total momentum of the system of the two carts
To celebrate a victory, a pitcher throws his glove straight upward with an initial speed of 7.0 m/s. How long does it take for the glove to return to the pitcher
A child's toy consists of a piece of plastic attached to a spring, estimate the force constant of the spring
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