In Figure (a) three positively charged particles are fixed on an x axis. Particles B and Care so close to each other that they can be considered to be at the same distance from particle A. The net force on particle A due to particles B and C is 2.75 x 10-23 N in the negative direction of the x axis. In Figure (b), particle B has been moved to the opposite side of A but is still at the same distance from it. The net force on A is now 3.35 x 10-24 N in the negative direction of the x axis. What is the ratio qc/qB? Number Units B A A (a) (b) BC с ·x
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- Red blood cells can often be charged. Consider two red blood cells with the following charges: -24.6 pC and +51.6 pC. The red blood cells are 3.58 cm apart. a) What is the magnitude of the force on each red blood cell? b) The red blood cells come into contact with each other and then are separated by 3.58 cm. What magnitude of force does each of the red blood cells now experience?The figure shows an arrangement of four charged particles, with angle 0 = 30.0° and distance d = 1.50 cm. Particle 2 has charge q2 = 8.00 × 10-¹⁹ C; particles 3 and 4 have charges 93 94 = -4.80 × 10-19 C. (a) What is the distance D between the origin and particle 2 if the net electrostatic force on particle 1 due to the other particles is zero? (b) If particles 3 and 4 were moved closer to the x axis but maintained their symmetry about that axis, would the required value of D be greater than, less than, or the same as in part (a)? 1 (a) Number i (b) less d 3 4 D 2 UnitsA pair of vertical charged conducting plates produces a uniform field of 1.1 Nî, directed to the right, between the plates. The separation of the kN plates is 40mm. An electron is projected from plate A, directly towards plate B, with an initial velocity of 6.38 Mm. Determine the velocity of the electron as it strikes plate B (in S Mm) S A E Vo 40 mm B
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