Asmall metal sphere of mass 3.1 g and charge 2.6 μc is fired with an initial speed of 5.6 m/s directly toward the center of a second metal sphere carrying charge 3.4 μc. this second sphere is held fixed. if the spheres are initially a large distance apart, how close do they get to each other? treat the spheres as point charges.
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Physics, 22.06.2019 10:30
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
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Physics, 22.06.2019 11:10
Which situation will produce the greatest change of momentum
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Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
Answers: 1
Asmall metal sphere of mass 3.1 g and charge 2.6 μc is fired with an initial speed of 5.6 m/s direct...
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