One particle has a mass of 3.71 x 103 kg and a charge of +7.56 μC. A second particle has a mass of 7.17 x 103 kg and the same charge. The two particles are initially held in place and then released. The particles fly apart, and when the separation between them is 0.177 m, the speed of the 3.71 x 103 kg-particle is 126 m/s. Find the initial separation between the particles. V1,B V2.B 92 92 91 Number i 0.011 Units m
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- Part A Near the surface of the Earth there is an electric field of about 150 V/m which points downward. Two identical balls with mass m = 0.580 kg are dropped from a height of 1.90 m , but one of the balls is positively charged with q1 = 700 uC , and the second is negatively charged with q2 = -700 µC . Use conservation of energy to determine the difference in the speed of the two balls when they hit the ground. (Neglect air resistance.) Express your answer to three significant figures and include the appropriate units. HẢ vị – v2 = Value UnitsTwo metal spheres of identical mass m = 4.40 g are suspended by light strings 0.500 m in length. The left-hand sphere carries a charge of 0.845 µC, and the right-hand sphere carries a charge of 1.55 µC. What is the equilibrium separation between the centers of the two spheres? I keep getting 0.6485480208 m but it says it is wrongTwo circular disks spaced 0.50 mm apart form a parallel-plate capacitor. Transferring 1.80 ×10^9 electrons from one disk to the other causes the electric field strength to be 1.20 ×10^5 N/C. A.What are the diameters of the disks?
- An infinite wire (R = 0.05 c m) is charged to λ = 2.5 μ C / c m. An electron is knocked out of the wire. Right at the edge, the electron flies outward at 6 × 10 7 m / s. How far does it travel before it stops and returns?Alpha particles (i.e., Helium nucleus) have a molar mass of 4.002 g/mol and consist of two protons and two neutrons. Determine the charge of one alpha particle in units of Coulombs and the mass of one alpha particle in units of kg. Suppose that Ernie Rufferthord (not to be confused with the scientist of gold foil fame) wishes to suspend an alpha particle in midair by attracting it to a bundle of electrons held a distance of 1.00-m above the alpha particle. How many electrons would Ernie need in his bundle to accomplish such an amazing feat?Two small metal cubes with masses 2.0 g and 4.0 g are tied together by a 5.4-cm-long massless string and are at rest on a frictionless surface. Each is charged to +2.1 µC. Part C The string is cut. What is the speed of 2-g-cube when the cubes are far apart? Hint: There are two conserved quantities. Make use of both. Express your answer with the appropriate units. » View Available Hint(s) µA m S Submit Previous Answers X Incorrect; Try Again; 27 attempts remaining P Pearson
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