College Physics
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Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Two point charges 2.55cm apart have an electric potential energy -195.0μJ. The total charge is 48.4nC. What are the two charges?
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- Two parallel plates 20 cm on a side are given equal and opposite charges of magnitude 9×10-9 C. The plates are 5.0 mm apart. What is the potential difference between the plates? 67.766 V 22.589 V 44.173 V 127.061arrow_forwardTwo point charges (nC and -15.50 nC) are located 8.00 cm apartLet U = 0 when all of the charges are separated by infinite distances. What is the potential energy if a third point charge q = - 4.2nC is placed at point b?arrow_forwardA point charge q1= 2.40 uC is helf stationary at the origin. A second point charge q2= -4.30 uC moves from the point ×=0.150m, y=0 to the point ×=0.250, y=0.250. Calculate the change in three electrical potential energy between the charges.arrow_forward
- Two point charges have a total electric potential energy of -24 J, and are separated by 29 cm. If the total charge of the two charges is 45 μC, what is the charge, in μC, on the positive one? What is the charge, in μC, on the negative one?arrow_forwardTwo protons are 3.9 x 10-5 m apart. What is the electrical potential energy between the two charges? Group of answer choices 9.46 x 10^-24 J 4.76 x 10^-24 J 4.95 x 10^-24 J 5.91 x 10^-24 J 6.58 x 10^-24 Jarrow_forwardFind the total electric potential energy QC has due to QA & QB.arrow_forward
- Two particles with charges +4e and -7e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 7.43 x 10-12 m apart. What is EPE final - EPEinitial, which is the change in the electric potential energy? Number p. Unitsarrow_forwardOppositely charged parallel plates are separated by 5.09 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates? (b) What is the magnitude of the force on an electron between the plates? (c) How much work must be done on the electron to move it to the negative plate if it is initially positioned 2.18 mm from the positive plate?arrow_forwardFour point charges q1 = 2.222µC, q2 = -0.719µC, q3 = 6.687µC, and q4 = -2µC are located at the corners of a square whose side s = 0.315m. The potential (in J/C) at the center of square is...?arrow_forward
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