f an object contains many parts (= many molecules), then the random motion of those parts will produce a net momentum.     True   False Question 2  At a given point in space, the electric field depends on the amount of charge on a test charge that you put at that point in space.     True   False

Part A An electron is moving east in a uniform electric field of 1.47 N/C directed to the west. At point A, the velocity of the electron is 4.46x105 m/s pointed toward the east. What is the speed of the electron when it reaches point B, which is a distance of 0.395 m east of point A? Express your answer in meters per second. V₁ = Submit Part B || ΑΣΦ ← Request Answer 给 ΑΣΦ A p=1.73.104 Ć A proton is moving in the uniform electric field of part A. At point A, the velocity of the proton is 1.92x10 m/s, again pointed towards the east. What is the speed of the proton at point B? Express your answer in meters per second. C 16 ? Submit Previous Answers Request Answer ? m/s * Incorrect; Try Again; 29 attempts remaining m/s

1.0p 1.0p Electron in E-field An electron with speed vo = 6704085.4m/s is traveling parallel to and along the same direction as an electric field of magnitude E=4739N/C. 4a How far will the electron travel before it stops? (Please answer in Sl unit and multiply your answer by 10²) Answer Show feedback 4b How much time will elapse before it returns to its starting point? (Please answer in SI unit and multiply your answer by 10%)

Part A What is the escape speed of an electron launched from the surface of a 1.4-cm-diameter glass sphere that has been charged to 5.0 nC ? Express your answer to two significant figures and include the appropriate units. HA m v = 2.258 • 107 V = S

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Part A An electric dipole is formed from two charges, +q, spaced 0.600 cm apart. The dipole is at the origin, oriented along the y-axis. The electric field strength at the point (r, y) = (0 cm, 10 cm) is 340 N/C What is the charge q? Give your answer in nC. Express your answer in nanocoulombs to three significant figures. > View Available Hint(s) ΑΣφ q =160 nC Submit Previous Answers Incorrect; Try Again; 3 attempts remaining Part B What is the electric field strength at the point (x, y) = (10 cm, 0 cm)? Express your answer with the appropriate units. View Available Hint(s) HA E= Value Units Submit

A point charge with charge q1 = 2.30 μC is held stationary at the origin. A second point charge with charge q2 = -4.90 μC moves from the point (0.140 m, 0) to the point (0.260 m, 0.235 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 = 跖 ΤΟ ΑΣΦ ? J

Homework 1, Q7 Please help im not understanding how to do this question

Part A An electron starts from rest 27.5 cm from a fixed point charge with Q = -4.00 nC. How fast will the electron be moving when it is very far away? Express your answer with the appropriate units. HÀ ? Value Units V =

Part A An electron moving parallel to a uniform electric field increases its speed from 2.0x10' m/s to 4.0×10 m/s over a distance of 1.2 cm. What is the electric field strength? Express your answer with the appropriate units. HA E = Value Units Submit Request Answer