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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?
A 23kg child slides down a 4.0m -high playground slide. What is the change in the thermal energy of the slide and the seat of her pants
In the Biomedical and Physical Sciences building at MSU there are 127 steps from the ground floor to the sixth floor. How much work did the person do
a 4kg disk travelling at 4 m/s strikes a 2 kg stick of length 4m that is lying flat on frictionless ice. What is the translational speed of the disk
A bottle has a mass of 35.00 g when empty and 98.43 g when filled with water. What is the specific gravity of this other fluid
Air in a closed piston-cylinder device arranged to maintain a pressure of 400 kPa is heated from 27 ° C to 227 ° C. What is the final air volume
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 187 m. Find the magnitude of the total force on the port
The moon's diameter is 3.48 x 10 6 m, and its mean distance from the earth is 3.85 x 10 8 m. what is the diameter of the moon's image on the screen
The allowed energies of a simple atom are 0.0 eV, 5.0 eV and 8.0 eV. An electron traveling at a speed of 1.8×10^6 m/s collisionally excites the atom. What is the minimum speed the electron could have after the collision? What is the minimum speed t..
At 2500K hydrogen gas (H2) adds two more degrees of freedom to its motion. It has three translation motions, two rotational motions, What would be its kinetic energy per molecule
q1. a car of mass 1100 kg travelling at 50.0kmhr enters a banked turn covered with ice. the road is banked at an angle
A 5m length of wire cariying a current of 5A lies on a hoizontal table with a rectangular top of dimensions 3.00m x 4.00m. What magnetic force acts on this segment of wire
A 3000 kg lunar lander is in orbit 50 km above the surface of the moon. how much work must the thrusters do
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