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A conducting sphere of radius r1 = 0.21 m has a total charge of Q = 1.6 μC. A second uncharged conducting sphere of radius r2 = 0.29 m is then connected to the first by a thin conducting wire. The spheres are separated by a very large distance compared to their size. What is the total charge on sphere two, Q2 in coulombs?

Three point charges are fixed as shown in (Figure 1). Take q₁ = 20 μC, q2 = -30 μC, 93 = 40 μC, and d = 9.0 mm. The point charge of 3.6 μC is placed at the center of the triangle. Figure y Ke X 93 9₁ d ( d 1 of 1 92 > ▼ Part A What is the magnitude of the force exerted on the charge at the center of the triangle? Express your answer with the appropriate units. |F|net = Submit Part B I 0 = 346 μА O Value X Incorrect; Try Again; 5 attempts remaining N Previous Answers Request Answer What is the direction of the force exerted on the charge at the center of the triangle? Express your answer in degrees, measured counterclockwise from the positive x-axis. ?

Charged particles q1=−q1=− 4.00 nCnC and q2=+q2=+ 4.00 nCnC are separated by distance 3.90 mmmm , forming an electric dipole. Find the magnitude of the electric dipole moment. Express your answer in coulomb meters to three significant figures.

You have a vertical polyethylene rod. It is 30 cm. It Carries a negative charge Q=-3μC which is distributed uniformly allong it's length. A 51 gram marble of glass Carriies a positive q= +0.44 μC charge  . The marble hangs from the rod from a plastic string, 10 cm below the rod. What is the tension in the string?. a. 0.8N b. 0.5N c.0.3N d. 0.2N e. 0N

You have a summer job in the Exploratorium in San Francisco. Your team has been tasked to make an exhibit where a small charged pith ball is levitated above a large charged plate with a small circular opening in the middle. The pith ball is to be suspended about 5 cm above the center of the circular opening. After sufficient testing, you know that the plate could be roughly uniformly charged with 2.5 µC/m?. You measure 9.6 cm for the diameter of the circular opening and 0.20 grams for the mass of the pith ball. Find what the charge on the pith ball should be.