Which of the following symbols does not appear in the formula for Coulomb's Law? F C d

Several point charges are shown. -3µC +2μC - 1μC +4µC 1ст 1ст 1ст Calculate the work required by you to remove the 4 microcoulomb charge from the current location to a place far away. (Use k = 9E9) Enter number only (in Joules)

SOLVE: Find the force between two 1 x 10-6 coulombs, separated by 3 cm.

Questions 5-6 refer to the figure below. 0.25 m 0.1 m 91 в 0.1 т A 92 5. In the Figure q = -6.25 × 10–9 C and 2 = -12.5 × 10-9 C are separated by a distance of 0.25 m. Calculate the E-field due to q1 and q2 at point A, which is a distance of 0.1 m to the left of q1. A. – 384.7 ât N/C В. - 6536.1 î N/C C. 384.7 ât N/C D. 6536.1 â& N/C 6. In the Figure q1 = -6.25 × 10–9 C and 2 = -12.5 × 10-9 C are separated by a distance of 0.25 m. Calculate the E-field due to q and q2 at point B, which is a distance of 0.1 m to the left of q2. A. – 529.6 â& N/C B. – 8740.3 ât N/C C. 529.6 £ N/C D. 8740.3 ⣠N/C

4

2. A) Does Newton's Universal law of Gravitation satisfy the Action-Reaction Law? Discuss B) Does Coulomb's Law for the electric force between two charges satisfy the Action-Reaction Law? Discuss