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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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
Transcribed Image Text:3. Charges +2 μC, +3 μC, and -8 μC are placed at the vertices of an
equilateral triangle of side 10 cm. Calculate the magnitude of the force
acting on the -8 μC charge due to other two charges.
4
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- Two charges, q, = -10.0 µC and q, = 49.0 µC are located on the x-axis. Charge q, is at the origin, and q, is at x = 10.0 cm. Where must a positive charge q be placed (on the x-axis, in cm) so that the net force on q is zero? cmarrow_forward5. In the figure below, three hollow, concentric spherical conductors are charged as follows: The inner sphere carries a charge +4Q, the middle sphere carries a charge -20. and the outer sphere carries a charge +6Q. What is the charge on the outer surface of the middle sphere? Outer sphere (A) Zero (C) +4Q (E) +2Q (B)-Q (D)-2Q Middle sphere field at a point that is 0.50 m from the center of the sphere is 15x10' N/C and is directed 6. Electric charge is uniformly distributed inside a sphere of radius 0.30 m. The electric radially outward. The maximum magnitude of the electric field in N/C is: +++++ R (A) 25x10 (B) 20x10' (C) 36x10 (D) 42x10² (E) 48x10 7. Electrically neutral objects cannot exert an electrical force on each other, but they can exert a gravitational force on each other. A) True B) False 8. A charge of uniform volume density (40 nC/m3) fills a cube with 8.0-cm edges. What is the total electric flux through the surfaces of this cube in (N.m²/C)? (A) 2.9 (B) 2.0 (C) 2.6 (D)…arrow_forward1. Three identical metallic conducting spheres carry the following charges: 91 = +5.00 μC, q2 = +1.40 µC, and 93 -9.20 μC. The spheres that carry the charges 9₁ and 92 are brought into contact. Then they are separated. After that, one of those two spheres is brought into contact with the third sphere that carries the charge 93; those two are then separated as well. ROJS a) What is the final charge on the third sphere?60 SS μC sf60 s60 s ssf60 ssfo ssf603 60 ssf60 ssiarrow_forward
- Point charges qi -65 µC and q2 = -50 µC are placed 2.0 m apart. What is the force on a third charge q3 = -40 µC placed midway between q1 and q2? Magnitude: F number (rtol=0.03, atol=0) N Direction: towards q2 towards q1 the force is zeroarrow_forwardTwo positive charges, each of magnitude q, are on the y-axis at points y= ta and y=-a Where would a third positive charge of the same magnitude be located for the net force on the third charge to be zero? a. at the origin b. at y= 2a c. at y=-2a d. at y= -aarrow_forwardQuestion= Two small spheres spaced 20.0 cmcm apart have equal charge. 1. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 5.78×10−21 NN? Express your answer as number of electrons.arrow_forward
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