Two 1.8-mm-diameter beads, C and D, are 11 mm apart, measured between their centers. Bead C has mass 1.0 g and charge 1.9 nC Bead D has mass 1.5g and charge -1.0 nC.
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- B Q3 d₁ d₂ d3 d4 Three point charges Q₁ = -2.64 nC, Q2 = 3.24 nC and Q3 = 3.45 nC are shown in the figure. The distance in the figure are: d₁ = 1.10 cm, d₂ = 1.47 cm, d3 = 1.54 cm and d4 = 1.32 cm. The figure is not to scale. Use k=8.99 × 10⁹ Nm²/C². (a) If a proton is released from rest at point *B, how fast is it moving when it is very far away from the three charges? VC = (b) How fast would the proton need to be moving very far away from the three charges to reach *B with a speed of 9.78 x 105 m/s? VD= (c) If an electron is released from rest very far away from the three charges shown, how fast would it be moving at *B? VE = (d) How fast must an electron be moving at *B to come to rest very far away from the three charges? UF =A solid metallic sphere with a radius of rA - 5.00 cm is located inside a hollowed metallic sphere (radii B = 8.00 cm and rc = 12.0 cm); the spheres are concentric with each other and they are electrically insulated from each other. The inner sphere has a charge of-45.0 μC while the hollowed sphere has a charge of +80.0 μC.. What is the surface charge density on the outer surface (the one with rc = 12.0 cm)? To +691 μC/m² + 193 μC/m² -663 μC/m² +4427C/m² - 249 μC/m² WAn old fashioned computer monitor accelerates electrons and directs them to the screen in order to create an image. How much equal charge should be placed on the Earth and the Moon so that the electrical repulsion balances the gravitational force of 1.98×10^20N ? Treat the Earth and Moon as point charges a distance 3.84×10^8m apart.
- The two spherical shell has a charge of q1 = 0.30nC and q2 = 0.5nq. The radius of r1=7.5cm and r2 = 2.5cm. What is the new votage value in volts, after the charge transfer is completed between the two spheres? 92Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +6q. Sphere B carries a charge of -5g. Sphere C carries no net charge. Spheres A and B are touched together and then separated. Sphere C is then touched to sphere A and separated from it. Last, sphere C is touched to sphere B and separated from it. For the following questions, express your answers in terms of q. (a) How much charge ends up on sphere C? 0.5 (b) What is the total charge on the three spheres before they are allowed to touch each other? 0.25 (c) What is the total charge on the three spheres after they have touched? 0.375 Additional Materials M eBook JAN 12 tv MacBook Air DII 80 F7 F8 F6 esc F4 F5 F1 F2 F3 * 24 %A charge of 7 µC is on the y axis at 5 cm, and a second charge of –7 µC is on the y axis at –5 cm. 507 µC 4 3 2 + 1 3 μC +++++ -1 + 1 2 3 4 5 6 7 8 9 -2 -3 -5 0-7 µC Find the force on a charge of 3 µC on the a axis at x = 3 cm. The value of the Coulomb constant is 8.98755 × 10º N · m²/C². Answer in units of N.
- A 0.01294 kg ball with a positive charge of 47.4 μC hangs from a light string right next to a large vertical metal plate (the metal plate is so large compared to the length of the string and ball consider it to be infinite in size). How much surface charge density must the plate have to repel the ball so that the string makes and angle of 5.03 degrees from the vertical. Give your answer to 3 significant figures and in units of nC/m/m (nanoCoulombs per meter squared: Blackboard has trouble with squred units). Type in the units right after your numerical answer.A small sphere of mass m 6.60 g and charge q, = 28.1 nC is attached to the end of a string and hangs vertically as in the figure. A second charge of equal mass and charge q, = -58.0 nC is located below the first charge a distance d = 2.00 cm below the first charge as in the figure. 91 Ⓡ (a) Find the tension in the string. N (b) If the string can withstand a maximum tension of 0.180 N, what is the smallest value d can have before the string breaks? cmTwo metal spheres of identical mass m 3.60 g are suspended by light strings 0.500 m in length. The left-hand sphere carries a charge of 0.885 μC, and the right-hand sphere carries a charge of 1.59 μC. What is the equilibrium separation between the centers of the two spheres? m =