The drawings show three charges that have the same magnitude but may have different signs. In all cases the distance d between the charges is the same. The magnitude of the charges is lql-9.4 µC, and the distance between them is d-4.1 mm. Determine the magnitude of the net force on charge 2 for each of the three drawings. (a) F- (b) Fi (c) F= i i S +9

Two test charges are located in the ?x–?y plane. If ?1=−4.70 nCq1=−4.70 nC and is located at ?1=0.00 m,x1=0.00 m, ?1=0.680 m,y1=0.680 m, and the second test charge has magnitude of ?2=3.00 nCq2=3.00 nC and is located at ?2=1.20 m,x2=1.20 m, ?2=0.550 m,y2=0.550 m, calculate the ?x and ?y components, ?xEx and ?y,Ey, of the electric field ?⃗ E→ in component form at the origin, (0,0). The Coulomb force constant is 1/(4??0)=8.99×109 N·m2/ C2.

Two point charges each with 0.15 CC of charge are 5.0×10−2 mm apart. Knowing that k is 9×10^9N⋅m^2/C  (the proportionality constant for Coulomb's law), find the force between the charges. Express your answer to two significant figures and include the appropriate units.

Anil

please help with b)

The drawings show three charges that have the same magnitude but may have different signs. In all cases the distance d between the charges is the same. The magnitude of the charges is |q|=7.3 µC, and the distance between them is d=3.2 mm. Determine the magnitude of the net force on charge 2 for each of the three drawings. 1 (a) F= i (b) F= i (c) F= i +q 2 (a) +q 3 +q 1 +q 2 (b) +q 3 > > +q 1 21 Id +q 3

In a vacuum, two particles have charges of q1₁ and 92, where q1 = +4.8 μC. They are separated by a distance of 0.38 m, and particle 1 experiences an attractive force of 3.5 N. What is the value of q2, with its sign? Number i Units ◆

The drawings show three charges that have the same magnitude but may have different signs. In all cases the distance d between the charges is the same. The magnitude of the charges is lql=7.9 µC, and the distance between them is d=6.4 mm. Determine the magnitude of the net force on charge 2 for each of the three drawings. 1 (a) F = i (b) F= i (c) F = i +q 2 (a) +q 3 +q 1 +q 2 (b) +q 3 +q 1 < (c) 21 |d I +q 3

Red blood cells can often be charged. Consider two red blood cells with the following charges: -22.4 pC and +52.4 pC. The red blood cells are 4.39 cm apart. (1 pC = 1 x 10-12 C.) (a) What is the magnitude of the force on each red blood cell? N Are the red blood cells attracted or repulsed by each other? O attracted O repulsed (b) The red blood cells come into contact with each other and then are separated by 4.39 cm. What magnitude of force does each of the red blood cells now experience? N Are the red blood cells attracted or repulsed by each other? O attracted O repulsed