Two point charges Q1 = Q2 = +2.4 μC are fixed symmetrically on the x-axis at x = ±0.356 m. A point particle of charge Q3 = +3.7 μC and mass m = 12 mg can move freely along the y-axis. If the particle on the y-axis is released from rest at y1 = 0.016 m, what will be its speed, in meters per second, when it reaches y2 = 0.074 m? Consider electric forces only.
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Two point charges Q1 = Q2 = +2.4 μC are fixed symmetrically on the x-axis at x = ±0.356 m. A point particle of charge Q3 = +3.7 μC and mass m = 12 mg can move freely along the y-axis.
If the particle on the y-axis is released from rest at y1 = 0.016 m, what will be its speed, in meters per second, when it reaches y2 = 0.074 m? Consider electric forces only.
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- Identical 42 μC charges are fixed on an x axis at x = ±3.4 m. A particle of charge q = –20 μC is then released from rest at a point on the positive part of the y axis. Due to the symmetry of the situation, the particle moves along the y axis and has kinetic energy 1.2 J as it passes through the point x = 0, y = 4.5 m. (a) What is the kinetic energy of the particle as it passes through the origin? (b) At what negative value of y will the particle momentarily stop?Two charges are located on the x axis: q₁ = +7.3 µC at x₁ = +3.1 cm, and q2 = +7.3 µC at x₂ = -3.1 cm. Two other charges are located on the y axis: 93 = +3.1 μC at y3 = +5.4 cm, and 94 = -7.8 μC at y4 = +6.0 cm. Find (a) the magnitude and (b) the direction of the net electric field at the origin. 92 +y I 1 I 94 I I 93 1 41 --+xThree identical particles have the same mass m and the same positive charge Q. They are initially at rest at the corners of an equilateral triangle with side a when one is released while the other charges are held fixed. What is the speed of the moving charge when it is a large distance from the others?
- A particle of charge q is fixed at point P, and a second particle of mass m and the same charge q is initially held a distance r1 from P. The second particle is then released. Determine its speed when it is a distance r2 from P. Let q = 2.8 µC, m = 30 mg, r1 = 1.3 mm, and r2 = 2.6 mm.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 "B 91Two charges are located on the x axis: q1 = +8.9 µC at x1 = +3.6 cm, and q2 = +8.9 µC at x2 = -3.6 cm. Two other charges are located on the y axis: 93 = +3.6 µC at y3 = +5.4 cm, and 94 = -7.1 µC at y4 = +7.5 cm. Find (a) the magnitude and (b) the direction of the net electric field at the origin. 4 (71-- +x
- Two charges are located on the x axis: q1 = +4.8 μC at x₁ = +4.1 cm, and q2 = +4.8 μC at x2 = -4.1 cm. Two other charges are located on the y axis: 93 = +2.7 μC at y3 = +4.1 cm, and 94 = -8.6 μC at y4 = +6.9 cm. Find (a) the magnitude and (b) the direction of the net electric field at the origin. (a) Number i (b) The net electric field points Units N/C 94 43 41--+x 目Two small particles have charges Q₁ = +4.0 μC and Q₂ = -7.0 μC. The particles are conducting and are brought together so that they touch. Charge then moves between the two particles so as to make the excess charge on the two particles equal. If the particles are then separated by a distance of 5.4 mm, what is the magnitude of the electric force between them?A particle possessing ?=9.25 μCq=9.25 μC of charge and a mass of ?=4.55 gm=4.55 g is fired at a speed of ?=357 cm/sv=357 cm/s between two horizontal charged plates of length ?=44.7 cm. Assume that the electric field between the plates is uniform and has a constant value of ?=965 N/C,E=965 N/C, directed upwards. Calculate the distance ?y by which the charge falls below a straight‑line path when it reaches the end of the plates. Assume a gravitational acceleration of ?=9.81m/s2.
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