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An atomic nucleus initially moving at 420 m/s emits an alpha particle in the direction of its velocity and the remaining nucleus slows to 350 m/s. If the alpha particle has a mass of 4.0 u and the original nucleus has a mass of 222 u, determine what speed does the alpha particle have when it is emitted?
A skateboarder shoots off a ramp with a velocity of 6.9 m/s, directed at an angle of 56 ° above the horizontal. The end of the ramp is 1.1 m above the ground. how far is this point horizontally from the end of the ramp
a 30kg child wants to use a 20kg board that is 6.0m long as a seesaw. since all her friends are busy, How far from her will the support be
A satellite is in elliptical orbit with a period of 6.12 x 104 s about a planet of mass 8.14 x 1024 kg. What is its angular speed at apocenter
A cylinder of mass, M1= 6kg and radius R= 4 m is spinning about anaxis through its center at 7 rad/sec. What is the final angular velocity of the combination
A light beam having a wavelength of 470. nm in air is directed into glycerine (n = 1.47). What is the frequency of the light in the glycerine
A proton moves at constant velocity in the +y direction, by a region in which there is an electric field and a magnetic field. The electric field is in the +x direction, and has magnitude 700 V/m. The magnetic field is in -z direction, and has ma..
Indicate the direction of the electric field between the plates of the parallel plate capacitor shown in the drawing if the magnetic field is decreasing in time. Specify the direction of theelectric field to be down or up.
Abody weight W is attached by a string of length L, to a hook on a vertical wall. A horizontal force F acting on the body holds it at a distance D from the wall. Derive the equation, which give the F in terms of W, L and D
Energy stored in Electric and Magnetic Fields: A magnetic field has a magnitude of 10 T. What is the magnitude of an electric field that stores the same energy per unit volume as this magnetic field? What is the ratio of this computed electric field ..
two point charges lie along the y-axis. a charge of q1 -8.5 muc is at y 6.0 m and a charge of q2 -7.5 muc is at y
The H-alpha emission line from gas within a elliptical galaxy has a half-width of 6.5 Angstroms, representing a spread in velocity from opposite sides of the galaxy due to rotation.
s the speed of a wave on a string that has a mass of 3.3 kg and a length of 1.9 m while a 6.3 kg mass is hanging from the end?
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