A small sphere of mass m = 6.90 g and charge q 1 = 31.4 nC is attached to the en

Question

A small sphere of mass m = 6.90 g and charge q1 = 31.4 nC is attached to the end of a string and hangs vertically as in the figure. A second charge of equal mass and charge q2 = ?58.0 nC is located below the first charge a distance d = 2.00 cm below the first charge as in the figure.

A small sphere of mass m = 6.90 g and charge q1 = 31.4 nC is attached to the end of a string and hangs vertically as in the figure. A second charge of equal mass and charge q2 = ?58.0 nC is located below the first charge a distance d = 2.00 cm below the first charge as in the figure. Find the tension in the string N If the string can withstand a maximum tension of 0.180 N, what is the smallest value d can have before the string breaks? cm

Explanation / Answer

a) T = m*g + Fe = mg + k*q1*q2/d^2 = (0.0069*9.8)+((9*10^9*31.4*10^-9*58*10^-9)/(0.02^2)) = 0.108597 N

b) T = m*g + Fe = mg + k*q1*q2/d^2

0.18 = (0.0069*9.8)+((9*10^9*31.4*10^-9*58*10^-9)/(d^2))

d = 1.2cm

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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