Joann has rubbed a balloon with wool to give it a charge of -1.0 times 10^-8 C.

Question

Joann has rubbed a balloon with wool to give it a charge of -1.0 times 10^-8 C. She then acquires a plastic golf tube with a charge of +4.0 times 10^-6 C localized at a given position She holds the location of charge on the plastic golf tube a distance of 50.0 cm above the balloon. Determine the electrical force of attraction between the tube and the balloon. A balloon with a charge of 4.0 mu C is held a distance of 0.70 m from a second balloon having the same charge. Calculate the magnitude of the repulsive force.

Explanation / Answer

5.

from coloumbs law ,the electric forces between two charges is given by

F=KQ1Q2/r2=(9*109)(1*10-6)(4*10-6)/0.52

F=0.144 N

6.

F=KQ1Q2/r2=(9*109)(4*10-6)(4*10-6)/0.72

F=0.294 N

Related Questions

Navigate

• Browse (All)
• Browse J
• Subjects

---

---

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