Point charge 3.5 μCμC is located at xx = 0, yy = 0.30 mm, point charge -3.5 μCμC is located at xx = 0 yy = -0.30 mm. What are (a)the magnitude and (b)direction of the total electric force that these charges exert on a third point charge QQQ = 5.0 μCμC at xx = 0.40 mm, yy = 0?

Two point charges are fixed on the x-axis as follows: Q1 = +5.00E-6 C is located at x = +0.300 m and Q2 = –7.00E-6 C is at x = +0.600 m. What are the magnitude and direction (use positive sign for +x and negative sign for –x directions) of the net electrical force exerted by these two charges on a third charge Q3 = –8.23E-6 C placed at the origin, Q3 = 0.00 m (in Newtons)?   If two electrons are placed each 2.11E-10 m from a proton as shown, what is the magnitude of the net electrical force they exert on the proton (in Newtons)? (USE THE PICTURE I POSTED FOR THIS QUESTION WITH THE 45 DEGREE ANGLE)       If two electrons are placed each 2.11E-10 m from a proton as shown, what is the magnitude of the net electrical force they exert on the proton (in Newtons)?   On the x axis, a point charge Q1 = +4.80E-6 C is placed at the origin x = 0.00 m, and another point charge Q2 = +5.74E-6 C is placed at x = +5.00 m. Now the third point charge Q3 = –3.60E-6 C is placed on the x axis between Q1 and…

Two charges are located on the x axis: q₁ = +5.6 μC at x₁ = +4.9 cm, and q2 = +5.6 μC at x2 = -4.9 cm. Two other charges are located on the y axis: q3= +3.8 μC at y3 = +4.7 cm, and 94 = -11 μC at y4=+7.6 cm. Find (a) the magnitude and (b) the direction of the net electric field at the origin. (a) Number i (b) The net electric field points Units 94 92 --+x

Two charges are located on the x axis: q1 = +4.8 μC at x₁ = +4.1 cm, and q2 = +4.8 μC at x2 = -4.1 cm. Two other charges are located on the y axis: 93 = +2.7 μC at y3 = +4.1 cm, and 94 = -8.6 μC at y4 = +6.9 cm. Find (a) the magnitude and (b) the direction of the net electric field at the origin. (a) Number i (b) The net electric field points Units N/C 94 43 41--+x 目

(a) Two point charges totaling 8.50 μC exert a repulsive force of 0.200 N on one another when separated by 0.479 m. What is the charge (in µC) on each? smallest charge 1.0 X UC x uc largest charge 8.39 (b) What is the charge (in uc) on each if the force is attractive? smallest charge PC largest charge PC Additional Materials Reading

The cockroach Periplaneta americana can detect a static electric field of magnitude 9.00 kN/C using their long antennae. If the excess static charge on a cockroach is modeled as point charges located at the end of each antenna, what magnitude of charge q would each antenna possess in order for each antennae to experience a force of magnitude 4.50 µN from the external electric field? Calculate q in units of nanocoulombs (nC). q = nC