Question 1 A particle (charge = +40 MC) is located on the x-axis at the point x = -20 cm, and a second particle (charge = -50 uC) is placed on the x-axis at x = +30 cm. What is the magnitude of the total electrostatic force on a third particle (charge = -4.0 uC) placed at the origin (x = 0)? Question 2 A particle (m = 50 g, q = 5.0 uC) is released from rest when it is 50 cm from a second particle (9 =-20 UC). Determine the magnitude of the initial acceleration of the 50-g particle. (Hint: Find the net force first, and then use Newton's Second Law of Motion to find a) Question 3 If a = 3.0 mm, b = 4.0 mm, 21 = -60 nC, Q2 = 80 nC, and q = 30 nC in the figure, what is the magnitude of the electric force on q?Question 4 If Q =20 MC and L = 60 cm, what is the magnitude of the electrostatic force on any one of the charges shown? 8 + 1 Question 5 If a = 60 cm, b = 80 cm, Q= -4.0 nC, and q = 1.5 nC, what is the magnitude of the electric field at point P? PP Question 6 A +15-nC point charge is placed on the x axis at x = 1.5 m, and a -20-nC charge is placed on the y axis at y=-2.0m. What is the magnitude of the electric field at the origin?Question 7 A particle (charge = +2.0 mC) moving in a region where only electric forces act on it has a kinetic energy of 5.0 J at point A. Subsequently, the particle passes through point B, which has an electric potential of +1.5 kV relative to point A. Determine the particle's kinetic energy as it moves through point B. Question 8 A particle (charge = 5.0 uC) is released from rest at x = 10 cm. If a 5.0-JC charge is held fixed at the origin, what is the particle's kinetic energy after it has moved 90 cm? Question 9 Three charged particles are positioned in the xy plane: a 50-nC charge at y = 6 m on the y axis, a -80-nC charge at x = -4 m on the x axis, and a 70-nc charge at y = -6 m on the y axis. What is the electric potential (relative to a zero at infinity) at the point x = 8 m on the x axis?Question 10 Four identical point charges (+6.0 nC) are placed at the corners of a rectangle which measures 6.0 m x 8.0 m. If the electric potential is taken to be zero at infinity, what is the potential at the geometric center of this rectangle