This print-out should have 20 questions. Multiple-cholce questions may continue

Question

This print-out should have 20 questions. Multiple-cholce questions may continue on the next column or page find all choices before answering. 2 5 uC 001 10.0 points Two identical positive charges exert a repul- sive force of 6.3 × 10-9 N when separated by a distance 4.5 x 10-10 m. -1+1 2 345678 9 2-3 pC -3 Calculate the charge of each. The Coulomb constant is 8.98755 × 109 N·m2/C2. Answer in units of C. Find the force on a charge of 5pCon the axis at x = 5 an. The value of the Coulomb 002 10.0 points A particle with charge-9 is located on the a-axis at the point 6 cm, and a second particle with charge 6 pC is placed on the r-axis at-8 cm. constant is 8.98755 × 109 N-m2/C2 Answer in units of N 006 (part 1 of 2) 10.0 points A 2.5 uC point charge is on the c-axis at 4.7 m, and a 1.4 pC point charge is on the -+-+-+-+ Z-axisat 4.2 m 2 46 8 10 field at the point on the Find the magnitude of the net electric -10-8-6-4-2 -10-8-6-4-2 10 field at the point on the y-axis where y x (cm) 4.9 m. The value of the Coulomb constant is What is the magnitude of the total elec 8.98755 x 10 N m2/C trostatic force on a third particle with chargeAnswer in units of N/C. 7 uC placed on the r-axis at -2 cm? The Coulomb constant is 8.9875 x 10° N m2/C2. 007 (part 2 of 2) 10.0 points Determine the direction of this electric field (as an angle between 180 and 180° mea- sured from the positive r-axis, with counter- Answer in units of N 003 (part 1 of 2) 10.0 points , Assume that you have two objects, one with,clockwise positive.) a mass of 7 kg and the other with a mass of 17 kg, each with a charge of-0.03 C and Answer in units of . separated by a distance of 2 m. 008 10.0 points What is the electric force that these objects The electron gun in a television tube exert on one another? is used to accelerate electrons with mass 9.109 × 10-31 kg from rest to 3×107 m/s Answer in units of N within a distance of 3.3 cm. 004 (part 2 of 2) 10.0 points What electrie field is required? The funda- What is the gravitational force between them? mental charge is 1.602 x 10 1 C. Answer in units of N. Answer in units of N/C. 005 10.0 points A charge of 3 f.c is on the u axis at 2 cm, and 009 (part 1 of 3) 10.0 points An electron traveling at l × 1 0.07 m region with a uniform electrie field of 92 N/C, as in the figure 0° m/s €riters n charge of-3 C is on the y axis at

Explanation / Answer

001) F = kQ2/r2

=> Q = r(F/k)1/2 = (4.5 * 10-10) * [(6.3 * 10-9) / (8.98755 * 109)]1/2 = 3.8 * 10-19 C

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