Question 3 Not yet answered Marked out of 12.50 Two negative, equally charged dr

Question

Question 3 Not yet answered Marked out of 12.50 Two negative, equally charged drops of water, 5.80 mm apart, exert an electrostatic force of 28.5 x 10-9 N on each other. Determine the net charge on each drop. Give your answer in the form "ab.c" pico-Coulombs. Answer: Flag question For the previous problem determine the number of electrons that had been added to each drop to cause the net charge on it. Give your answer in the form "ab.c" mega-electrons Question 4 Not yet answered Marked out of 12.50 Answer Flag question

Explanation / Answer

3. Fe = k q1 q2 / r^2

28.5 x 10^-9 = (9 x 10^9) (q)^2 / (5.80 x 10^-3)^2

q = 10.3 x 10^-12 C Or 10.3 pC

4. q = n e

10.3 x 10^-12 = (1.6 x 10^-19)(n)

n = 64.5 x 10^6 electrons  

Ans: 64.5

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

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