shown in the figure, which have charges q 8.SpC, q,--63 0, and g,-15 0. The dist

Question

shown in the figure, which have charges q 8.SpC, q,--63 0, and g,-15 0. The distance between qi and q2 is 46 cm and the distance between q2 and gs is 69 cm Randomized Variables 92 =-63 pC gs 15 HC a 46 cm b 69 cm Otheexpertta 50% Part (a) How much potential energy in joules, is stored in this configuration of charges? -21.41 50% Part b Now assume that 91 and 92 are fixed in space at the locations indicated, and 93 is brought into it's position fron infinity wh dthe change in potential energy of the system, in joules, during this process? Grade Summary Potential cosO

Explanation / Answer

change in potential energy

dU = U - U12

from part A, U = -21.41 J

U12 = K q1q2/r12

U12 = (9*10^9 * 8.5*10^-6 * -63*10^-6)/(0.46)

U12 = -10.477 J

change in Potential eenrgy

dU = -21.41 + 10.477

dU = -10.933 J is the change in potential energy

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.