QUESTION 10 +e -e -e 8 cm 2 cm Two electrons (-e) are separated by 10 cm, and a proton (+e) is placed on the line connecting the two such that is is 2 cm from one of the electror (see diagram). Calculate the electric potential energy of the proton. (Give your answer in joules but don't include the units.) Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save

Potential, electric potential, and potential difference whose symbol is V refer to the amount of work energy needed to move a unit of electric charge a certain distance in an electric field. (This is not the same as electric potential energy whose symbol is U!!) Here are some different formulas for electric potential, V, in different problems: Work to move an amount of charge: V=w/q clipart 2 charges on x-axis-2.JPG Potential difference between two charged plates: V=Ed clip art electric field plate-2.jpg Electric potential at a distance from a charge: V=kq/r clipart 2 charges on x-axis-3.JPG What's the electric potential involved for each case below? Group of answer choices 10 joules of work to move 5 coulombs 10 V/m electric field across a 2 meter plates 90 meters away from a 2nC charge Options: 0.2 V 2 V 20 V

Item 9 A point charge with charge q1 = 2.80 μC is held stationary at the origin. A second point charge with charge q2 = -4.70 μC moves from the point (0.125 m, 0) to the point (0.250 m, 0.270 m ). Part A How much work is done by the electrostatic force on the moving point charge? Express your answer in joules. ► View Available Hint(s) W = 0.62558 Submit - ΑΣΦ Provide Feedback Previous Answers ? X Incorrect; Try Again; One attempt remaining J

Three, equal, positive, point charges are moved through a uniform electric field as shown in the diagram below. Let  W1, W2, and W3 equal the amount of work done by the electric field on charges q1, q2, and q3 respectively. Which of the following statements is true? a. W3 < W2 < W1  b. W2 > W3 > W1  c. W1 = W2 = W3  d. W1 < W2 < W3  e. W1 > W3 > W2

Write and expression for the electrical potential energy Unet of charge Qo as shown in the diagram. You will get full credit for writing the expression without any values, you can use any of the variables (symbols) shown in the diagram above to write your expression. Calculate the unknown charge Q2, including its magnitude and correct sign.