Using Coulomb's Law, answer the following. Show your solution and don't to forget your units!

1. Determine the electrical force of attraction between two balloons with separate charges of +3.5): 10-8 C and- 2.9 x10-8 C when separated a distance of 0.65 m. 2. Determine the electrical force of attraction between two balloons that are charged with the opposite type of charge but the same quantity of charge. The charge on the balloons is+6x10-7 C and they are separated by a distance of 0.50 m. 3. Determine the electrostatic force and gravitational force between two electrons 101 0 m apart (i.e. the forces felt inside an atom). 4. Two-point charges are located on the x-axis of a coordinate system: q1=1.5 nC is at x = +2.5 cm, and q2=-2.0 nC is at x = +4.0 cm. What is the total electric force exerted by: q1 and q2 on a charge q3=4.5 nC at x = 0? 5. The electrostatic force between two charged spheres of +3nC and +4nC respectively is 0,04N. What is the distance between the spheres