Particles A, B, C, and D in (Figure 1) each carry a charge of magnitude 9.0 nC. Figure A + D+ 3.0 m < 1 of 1 > B Part A Calculate the electric potential energy for the charge distribution in this 3.0-m square if all the charges are positive. Express your answer with the appropriate units. OL ΜΑ U= 1.56 10-6 Part B Submit Previous Answers Request Answer J X Incorrect; Try Again; 4 attempts remaining dan AnAURER ? Calculate the electric potential energy for the charge distribution in this 3.0-m square if B, C, and D are positive and A is negative. Express your answer with the appropriate units. U = 0 J P Pearson

I Review A 13.0 nC charge is at x = Ocm and a -1.4 nC charge is at = 3.0 cm Part A At what point or points on the a-axis is the electric potential zero? Express your answer in centimeters. If there is more than one answer, give each answer separated by a comma. Vα ΑΣφ ? x0 = cm Submit Request Answer

The electric potential in a region of space is V = Part A E= Submit What is the strength of the electric field at (x, y) = (2.7 m, 2.8 m)? Express your answer using two significant figures. Part B 0= 2 of 15 || ΑΣΦ 4 → C Request Answer 15. ΑΣΦ Submit (300 V-m) √x² + y² 2 Request Answer What is the direction of the electric field at (x, y) = (2.7 m, 2.8 m)? Give the direction as an angle ccw from the positive x-axis. Express your answer in degrees using two significant figures. BALAD where and y are in meters. ? V/m ccw from the positive z-axis

A proton has an initial speed of 5.0×105 m/s. Please give a correct/clear explanation of all constants or values used to solve each part: a> What potential difference is required to bring the proton to rest? Express your answer using two significant figures.  b>What potential difference is required to reduce the initial speed of the proton by a factor of 2? Express your answer using two significant figures.  c>What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 2? Express your answer using two significant figures.

A. Show on the drawing below the electric field, B. What is the magnitude of electric field between A and B (distance A and B d=0.03m) C. If a charge particle at point A q = 2 x 10-6 C move to point B, calculate the amount of work done by the electric field on the particle in the figure. D. Calculate the amount of force and acceleration of particle 6 V 5 V 4 V 3 V 2 V B 1V O V

IP A parallel-plate capacitor has plates with an area of 1.1×10-2 m² and a separation of 0.83 mm. The space between the plates is filled with a dielectric whose dielectric constant is 1.9. ▾ Part A What is the potential difference between the plates when the charge on the capacitor plates is 4.0 μC ? Express your answer using two significant figures. 15. ΑΣΦ V= Submit ▾ Part B O Increase O Decrease Will your answer to part A increase, decrease, or stay the same if the dielectric constant is increased? O Stay the same Submit Request Answer Part D Part C Complete previous part(s) V= Request Answer Submit B ? Calculate the potential difference for the case where the dielectric constant is 4.1. Express your answer using two significant figures. VE| ΑΣΦ Request Answer V ? V

Only Part C

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Part A What is the electric potential at this point? At one point in space, the electric potential energy of a 15 nC charge is 51 µJ. Express your answer with the appropriate units. НА V = Value Units 9 This unit is not recognized. See the list of acceptable units. No credit lost. Try again. Submit Previous Ansswers Request Answer Part B If a 25 nC charge were placed at this point, what would its electric potential energy b Express your answer with the appropriate units. U = Value Units Submit Request Answer

Part A What is the electric potential 16.0 cm from a 3.50 µC point charge? Express your answer with the appropriate units. : HẢ ? V = Value Units %3D