Speed of an Electron between Two Charges Two stationary positive point charges, charge 1 of magnitude 3.60 nC and charge 2 of magnitude 1.60 nC, are separated by a distance of 41.0 cm. An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. Part A What is the speed Ufinal of the electron when it is 10.0 cm from charge 1? Express your answer in meters per second. ▸ View Available Hint(s) Ufinal = Submit Provide Feedback ΜΕ ΑΣΦ 跖 ? m/s Review IC
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- Part B A dielectric with K = 3.40 is inserted between the plates of the capacitor, completely filling the volume between the plates. Now what is the maximum magnitude of charge on each plate if the electric field between the plates is not to exceed 3.00x104 V/m? Express your answer with the appropriate units. µA ? Q = Value UnitsTwo very large charged parallel metal plates are 15.0 cm apart and produce a uniform electric field of 3.40 10 N/C between them.A proton is fired perpendicular to these plates with an initial speed 5.20 km/s, starting at the middle of the negative plate and going toward the positive plate. Part A How much work has the electric field done on this proton by the time it reaches the positive plate? Express your answer with the appropriate units. W M Value Units Submit Request AnswerPart 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
- Learning Goal: To understand the relationship and differences between electric potential and electric potential energy. In this problem we will learn about the relationships between electric force F, electric field Ē, potential energy U, and electric potential V. To understand these concepts, we will first study a system with which you are already familiar: the uniform gravitational field. Part B Now find the gravitational potential energy U (z) of the object when it is at an arbitrary height z. Take zero potential to be at position z = 0. Keep in mind that the potential energy is a scalar, not a vector. Express U (2) in terms of m, z, and g. U (z) = Submit ΨΕ ΑΣΦ Request Answer ?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 ? JPart 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
- Part A and BAn alpha particle with a kinetic energy of 7.00 MeV makes a head-on collision with a gold nucleus at rest. Part A What is the distance of closest approach of the two particles? (Assume that the gold nucleus remains stationary and that it may be treated as a point charge. The atomic number of gold is 79, and an alpha particle is a helium nucleus consisting of two protons and two neutrons.) Express your answer in meters. d = Submit VE ΑΣΦ Provide Feedback Request Answer ? mPart A An electron moves between two plates and experiences an increase in kinetic energy of 3.8x10-15 J. Calculate AV = VA - VB of the plates. AV = Express your answer with the appropriate units. Value A A Submit Request Answer VA Units ? VB B
- Part A The work done by an external force to move a -5.60 µC charge from point A to point B is 1.50x10-3 J. If the charge was started from rest and had 4.72x10-4 J of kinetic energy when it reached point B, what must be the potential difference between A and B? Express your answer with the appropriate units. HẢ ? VB – VA = Value UnitsYour object has mass 39.3 kg, and youve separated the boxes of protons and electrons by a distance of 23 m. If you were to release the clump of protons from their box, how much acceleration would the clump of protons undergo due to its attraction to the clump of electrons in the other box? A. 1.54E+24 m/s^2 B. 3.07E+24 m/s^2 C. 6.14E+24 m/s^2 D. 1.23E+25 m/s^2I Review An arrangement of source charges produces the electric potential V = 5000x along the x-axis, where V is in volts and x is in meters. Part A What is the maximum speed of a 0.90 g , 7.0 nC charged particle that moves in this potential with turning points at +7.4cm? Express your answer with the appropriate units. HA Value Units Umax = Submit Request Answer