A small piece of dust has an excess of 100 electrons. A second small piece of dust has a deficit of 250 electrons. Do these two pieces repel or attract? If these two dust pieces are brought together to make a single, larger dust piece, what is its net charge? Is it positive, negative, or
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- q 1.0 m, 0 Ꮎ Show Transcribed Text 1.0 m q Two 1.70 g positive point charges on 1.0- m-long threads repel each other after being equally charged and are held at an angle 0=16. What is the charge q?The two particles have a charge of +Q1 and +Q2, respectively, while their total charge is 6 mC. The two charged particles repel each other with a force of 500 N when they are 3 m apart. Find the charge of Q1 and Q2!16. Two point charges qA = +10.0 µC and qB = -40.0 µC and a third particle with unknown charge qC are located on the x axis. The particle qA is at the origin, and qB is at x = 12.0 cm. The third particle is to be placed so that each particle is in equilibrium under the action of the electric forces exerted by the other two particles. a) The diagrams below show a positively charged qC in each of the three possible locations with respect to qA and qB. Draw and label vectors (for example, -->F AB) showing the directions of the forces on all three particles, and circle any of the diagrams in which there are opposing forces on all three charges.
- = 32.2 nC. The figure below shows a small, hollow, plastic sphere hanging vertically from a thin, lightweight thread. The sphere has a mass of 7.10 g and a uniformly distributed charge of 91 Directly below it is a second sphere with the same mass, but a charge of 92 = -58.0 nC. (Assume this second sphere is fixed in place.) The centers of the two plastic spheres are a distance d = 2.00 cm apart. 91 92 (a) What is the tension (in N) in the thread? 0.11154376 N (b) The thread will break if the tension in it exceeds 0.180 N. What is the smallest possible value of d (in cm) before the thread breaks? The analysis is the same as in part (a), including the magnitude and direction of the gravitational and electric forces. Note that Coulomb's law depends on the square of the distance d. Use the threshold value of the tension to solve for d. cmA hollow metal sphere carries a charge of 5.5 μC. A second hollow metal sphere with a radius 2.25 times that of the first carries a charge of 15.5 μC. The two spheres are brought into contact with each other, then separated. The first sphere now has a charge of ___ μC. The second sphere now has a charge of ___ μCSpheres A, B and C have charges +8.0 C, +12.0 C, and -5.0 C, respectively. The three spheres are allowed to touch each other simultaneously and then separated. What is the total charge on the three spheres before and after touching each other?