a) An electron starts at rest and accelerates through an electric field established by a set of parallel plates with a potential difference of 35 V. What is the speed of the electron the instant before it hits the negative

40,926 results
  1. physics

    An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate (see the drawing). The plates are separated by a distance of 1.3 cm, and the electric field within the capacitor has a magnitude of

  2. physics

    An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 115 m/s2. What are the magnitude and direction of the electric field.

  3. physics

    an electron enters the region of a uniform,electric field with 3X10^6m/s and e=200 N/C . the horizontal length of the plates is 0.100m. a) find the acceleration of the electron while it is in the electric field . b) if the electron enters the field at time

  4. Physics

    Can an electron at rest in a magnetic field be set into motion by the magnetic field? What if it were at rest in an electric field?

  5. Physics

    An electron is projected with an initial speed of (1.6x10^6 m/s) into the uniform field between two parallel plates. Assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. The

  6. Physics

    A small object, which has a charge q = 6.7 µC and mass m = 9.60 10-5 kg, is placed in a constant electric field. Starting from rest, the object accelerates to a speed of 2.06 103 m/s in a time of 1.03 s. Determine the magnitude of the electric field.

  7. physics

    an electron with a speed of 5.00 x 10^8 cm/s enters an electric field of magnitude 1.00 x 10^3 N/C, traveling along field lines in the direction that retards its motion. a) How far will the electron travel in the field before stopping momentarily b) how

  8. PHYSICS

    An electron iwth an initial speed of 500,000 m/s is brought to rest by an electric field. (a) Did the electron move into a region of higher potential or lower potential? (b) What was the potential difference that stopped the electron?

  9. physics

    An electron is projected with an initial speed of (1.90x10^6 m/s) into the uniform field between two parallel plates. Assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. The

  10. Physics

    An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.16 105 m/s to a final velocity of +2.23 106 m/s while traveling a distance of

  11. Physics

    An electron is projected into a uniform electric field E = (1000 N/C)i with an initial velocity (2.00* 10^6m/s)i in the direction of the field. How far the electron travel before it is brought momentarily to rest?

  12. Physics

    The figure below shows an electron passing between two charged metal plates that create an 115 N/C vertical electric field perpendicular to the electron’s original horizontal velocity. (These can be used to change the electron’s direction, such as in

  13. Physics II

    An electron with an initial speed of 5.0 ✕ 105 m/s enters a region in which there is an electric field directed along its direction of motion. If the electron travels 9.0 cm in the field before being stopped, what are the magnitude and direction of the

  14. physics

    An electric field of 2.0x10^4N/C is directed along the positive x-axis. a. What is the electric force on an electron in the field? b. What is the electric force on a proton in the field?

  15. physics

    An electron moving to the right at 4.0% the speed of light enters a uniform electric field parallel to its direction of motion. If the electron is to be brought to rest in the space of 5.0 cm, determine what the strength of the field is.

  16. physics help!

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

  17. physics

    When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines

  18. physics

    The plates of a parallel plate capacitor are separated by a distance of 1.2cm, and the electric field within the capacitor has a magnitude of 2.1x 10^6 V/m. An electron starts from rest at the negative plate and accelerates to the positive plate. What is

  19. PHYSICS

    The electron gun in a television tube uses a uniform electric field to accelerate electrons from rest to 5.0×107 m/s in a distance of 1.2 cm. What is the electric field strength?

  20. Electric forces

    An electron is released above the earth's surface. A second electron directly below it exers just enough of an electric force on the first electron to cancel the gravitational force on it. Find the distance between the two electrons. I thought if I just

  21. Physics

    a) An electron starts at rest and accelerates through an electric field established by a set of parallel plates with a potential difference of 35 V. What is the speed of the electron the instant before it hits the negative plate? (e = 1.6 × 10^-19 C,

  22. physics

    An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.

  23. Physics - important

    An electron is accelerated through a uniform electric field of magnitude 2.5x10^2 N/C with an initial speed of 1.2x10^6 m/s parallel to the electric field. a) Calculate the work done on the electron by the field when the electron has travelled 2.5 cm in

  24. physics

    An electron is accelerated by a constant electric field of magnitude 325 N/C. (a) Find the acceleration of the electron. (m/s^2) (b) Use the equations of motion with constant acceleration to find the electron's speed after 1.05 10-8 s, assuming it starts

  25. electric

    When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines

  26. Physics

    A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 5.0 10-23 kg m/s from 1.4 10-23 kg m/s in a time of 6.5 10-6 s. What is the magnitude of the electric field?

  27. Physics

    An electron is accelerated through a uniform electric field of magnitude 2.5x10^2 N/C with an initial speed of 1.2x10^6 m/s parallel to the electric field. a) Calculate the work done on the electron by the field when the electron has travelled 2.5 cm in

  28. Vectors

    The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the charge multiplied by the velocity of a charged particle and Vector B the strength of the magnetic field, in Tesla (T). An electron

  29. physics

    An electron accelerates from rest through a potential difference of 184 V. What is its final speed? An electron that has a horizontal initial speed of 4.50 106 m/s enters a region that has an electric field of 120 V/m pointing vertically upward. How long

  30. physics ( need answer very very soon pleaseeeee)

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

  31. math/physics

    An electron moving through an electric field experiences an acceleration of 6.1 multiplied by 103 m/s2. (a) Find the electric force acting on the electron. (b) What is the strength of the electric field?

  32. Physics

    A uniform electric field of 775 N/C is produced within a particle accelerator. Starting from rest, what are the following? (a) the speed of an electron placed in this field after 25.4 ns have elapsed m/s (b) the speed of a proton placed in this field after

  33. physics

    Electronic types neglect the force of gravity on electrons.To see why, compute the force of Earth's gravity on an electron and compare it with the force exerted on the electron by an electric field of magnitude 6000 V/m (a relatively small field). The mass

  34. physics

    An electron has an initial velocity of 2.00 ✕ 10 6 m/s in a uniform 6.00 ✕ 10 5 N/C strength electric field. The field accelerates the electron in the direction opposite to its initial velocity. (a) What is the direction of the electric field? (b) How

  35. physics

    An electron is projected horizontally at a speed of 3x10^6 m/s into a uniform electric field 200 N/C produced by two charged plates of width 0.1m (a) find the a cceleration of the electron in the elec field.(b) finn the time takes to travel through the

  36. Physics - urgent

    I already asked this and was given an answer, but I don't fully understand it and so would like a further explanation. What I asked was... An electron is accelerated through a uniform electric field of magnitude 2.5x10^2 N/C with an initial speed of

  37. Physics

    An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate (see the drawing). The plates are separated by a distance of 1.4 cm, and the electric field within the capacitor has a magnitude of

  38. Physic

    An electron, travelling at 2.3*10^ 3 m/s , enters perpendicular to the electric field between two horizontal charged parallel plates. If the electric field strength is 1.5*10^ 2 V/m. , calculate the time taken for the electron to deflect a distance of 1.0

  39. electric

    When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines

  40. Physics

    An electron is relased into a uniform electric field of magnitude 8.35 N/C. How many times larger is this electrons acceleration than the acceleration due to gravity on the surface of Earth? Is it just F= qE = ma (for the electron, and using E for electric

  41. COLLEGE PHYSICS

    A 1100kg car starts from rest, accelerates for 5 seconds. The magnitude of acceleration is (a)= 4.6m/s2. find the average power generated by the net force that accelerates the vehicle? what do i do here i know that F=ma= 1100x4.6=5060=F and Wnet =

  42. Physics

    A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.70 cm. (a) What is the work done by the field on the electron? J? (b) What is the change in

  43. Physics

    An electron with a speed of 3.00X10^6 m/s moves into a uniform electric field of magnitude 1.00X10^3 N/C. The field lines are parallel to the electron’s velocity and pointing in the same direction as the velocity. How far does the electron travel before

  44. Physics

    An electron travelling in the same direction that an electric field points initially has a speed of 4.21 ×107 meters per second. If the electric field has a magnitude of 2.28 ×104 N/C, how far does the electron travel before stopping?

  45. College

    An electron enters the region of a uniform electric field, with v1=3*10^6 m/s and E=200N/C. The horizontal length of the plates is 0.100m 1. Fine the acceleration of the electron while in the field. 2. If the electron enters the field at a time t=0, find

  46. physics

    An electron is accelerated through a uniform electric field of magnitude 2.5 3 102 N/C with an initial speed of 1.2 3 106 m/s parallel to the electric field, as shown in Figure 10. (a) Calculate the work done on the electron by the field when the electron

  47. Math

    Question: An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 249 m/s^2 . Part A: What is the magnitude of the electric field? Answer: E=_____ N/C Part B: What is the direction of the electric field?

  48. Physics

    An electron is at rest. Can this electron be set into motion by applying a) a magnetic field? b) an electric field? Explain your answers. I know that that one of the fields can only be caused by movement, but I don't remember which one...

  49. Physics

    A uniform electric field of magnitude 395 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.40 cm. What is the work done by the field on the electron? What is the change in potential energy

  50. physics

    An electron is accelerated from rest by a uniform electric field of 3310V/M that is vertically pointing up, if the electron is traveling 6200000m/s how far (m) has it traveled in the electric field?

  51. Physics

    An electron and a proton are each placed at rest in an electric field of 363 N/C. What is the velocity of the electron 76.1 ns after being released? Consider the direction parallel to the field to be positive. The elementary charge is 1.60218 × 10 −19

  52. help help physics

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

  53. Physics

    An electron with a velocity of v = (3 x + 4 y + 2 z) × 106m/s enters a region where there is both a magnetic field and an electric field. The magnetic field is B = (1 x - 2 y + 4 z)T. If the electron experiences no force as it moves, calculate the

  54. physics

    3. What is the magnitude of the electric field strength E such that an electron, when placed in the field, would experience an electrical force equal to its weight? What electric field strength E is required if the electron is replaced by a proton

  55. Science

    A proton accelerates from rest to 3.00x10^6m/s in 1.00x10^-6s in a uniform electric field E. What is the magnitude of the electric field?

  56. physics

    An electron is released from rest in a uniform electric field of magnitude 2.00 x 10e4 N/C. Calculate the acceleration of the electron (neglect gravitation).

  57. Physics

    An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.16 105 m/s to a final velocity of +2.23 106 m/s while traveling a distance of

  58. physics

    An electron is a subatomic particle (m = 9.11 x10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.11 x 105 m/s to a final velocity of 1.67 x 106 m/s while traveling a distance of

  59. physics

    Two charged particles in an accelerator are at rest until an electric field causes them to accelerate away from each other when the field switched is turned on, particle a accelerates to the left at 8.97e+07 m/s2 while particle B accelerates to the right

  60. physics

    Electronic types neglect the force of gravity on electrons.To see why, compute the force of Earth's gravity on an electron and compare it with the force exerted on the electron by an electric field of magnitude 6000 V/m (a relatively small field). The mass

  61. Physics 221

    An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. Use energy methods to get the magnitude and direction of its velocity after it moves 0.10 cm form rest. Does the electron gain or lose potential energy?

  62. physics

    An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.

  63. physics

    An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.

  64. Math

    An electron accelerates from rest to the right, in a horizontally directed electric field. The electron then leaves the electric field at a speed of 4.0 × 106, entering a magnetic field of magnitude 0.20 T (Tesla) directed into the screen. Calculate the

  65. Math

    An electron accelerates from rest to the right, in a horizontally directed electric field. The electron then leaves the electric field at a speed of 4.0 × 106, entering a magnetic field of magnitude 0.20 T (Tesla) directed into the screen. Calculate the

  66. Physic

    An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 115 m/s^2.Determine the magnitude and direction of electric field.

  67. Calculus and Vectors

    The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the charge multiplied by the velocity of a charged particle and Vector B the strength of the magnetic field, in Tesla (T). An electron

  68. Vectors Math

    The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the charge multiplied by the velocity of a charged particle and Vector B the strength of the magnetic field, in Tesla (T). An electron

  69. Vectors Math

    The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the charge multiplied by the velocity of a charged particle and Vector B the strength of the magnetic field, in Tesla (T). An electron

  70. science

    an electron is projected horizontally at a speed of 3x10^6 m/s into a uniform electric field 200 N/C produced by two charged plates of width 0.1m (a) find the a cceleration of the electron in the elec field.(b) finn the time takes to travel through the

  71. Physics

    An electron moving to the right at 3.0% the speed of light enters a uniform electric field parallel to its direction of motion. If the electron is to be brought to rest in the space of 4.5 cm, determine the following. What direction is required for the

  72. physics

    1- A 40.0cm diameter loop is turned to the position where the largest flux is handled in a uniform electric field. In this position, the flux is obtained as 5.20 × 10 ^ 5 N.m ^ 2/c Find the twist of the electric field. 2- An electron was released from

  73. Physics

    1- A 40.0cm diameter loop is turned to the position where the largest flux is handled in a uniform electric field. In this position, the flux is obtained as 5.20 × 10 ^ 5 N.m ^ 2/c Find the twist of the electric field. 2- An electron was released from

  74. science

    an electron is released into a uniform electric field of magnitude 1.5 x 10^3 N/C. Calculate the acceleration of the electron, neglecting gravity. I know that if a charge is released in the electric field, it experiences a force and accelerates, gaining

  75. physics

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

  76. physics

    an elecrton is placed in a uniform electric field of 232 n/c charge. if the electron is at rest at the origin of t=0 and the field is in the positive direction, what are the x and y coordinates of the electron at t=2.3 ns

  77. PHY

    An electron that is released from the rest in a uniform electric field of 30 N/C experiences a voltage change of 60 volts as the electron moves ____ m in the field. a. 5 b. 2 c. 3 d. 0 e. 10 f. 0.4 g. 30

  78. Physics

    A uniform electric field of magnitude 410 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.00 cm. (a) What is the work done by the field on the electron?(b) What is the change in potential

  79. Physics

    Consider an electron entering a region between two charged metal plates where, aside from the electric field E, there is also a constant magnetic field B directed into the paper. V is the velocity of the electron (from left to right direction). a)Write an

  80. Physics

    An electron with a velocity of v = (3 x + 4 y + 2 z) × 106m/s enters a region where there is both a magnetic field and an electric field. The magnetic field is B = (1 x - 2 y + 4 z)T. If the electron experiences no force as it moves, calculate the

  81. algebra based physics

    An electron in an oscilloscope tube is traveling horizontally with a speed of 4.4×106m/s . It passes through a 2.1cm long region with an electric field pointing upward with a magnitude of 1500N/C. what is the magnitude of the electron’s velocity when it

  82. Physics

    Find the magnitude of the acceleration (in m/s2) for an electron in a uniform electric field with a magnitude of 100 N/C. and Find the time it takes (in sec) for an electron initially at rest in a uniform electric field of 110 N/C to reach a speed of 0.01c

  83. Physics

    Find the magnitude of the acceleration (in m/s2) for an electron in a uniform electric field with a magnitude of 100 N/C. and Find the time it takes (in sec) for an electron initially at rest in a uniform electric field of 110 N/C to reach a speed of 0.01c

  84. physics

    The Bohr model of the hydrogen atom consists of an electron travelling in a circular orbit of radius 5.29 x 10-11 m around a proton. The attraction between the two gives the electron the centripetal force required to stay in orbit. Calculate the: a.

  85. physics

    An electron at rest is found to have a force of 0.40 N to the left. What is the electric field (magnitude and direction) at the location of the electron?

  86. Physics

    An electron is traveling at 2.3 *10^3m/s, enters perpendicular to the electric field between two horizontal charged parallel plates. If the electric field strength is 1.5*10^2V/m calculate the time taken for the electron to deflect a distance of 1.0*10^-2

  87. physics

    An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +7.62 x 105 m/s to a final velocity of 2.56 x 106 m/s while traveling a distance of

  88. physics

    An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.21 105 m/s to a final velocity of +2.29 106 m/s while traveling a distance of

  89. physics

    An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.21 105 m/s to a final velocity of +2.29 106 m/s while traveling a distance of

  90. Physics

    An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.08 x 105 m/s to a final velocity of 2.63 x 106 m/s while traveling a distance of

  91. physics

    An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +7.93 x 105 m/s to a final velocity of 2.90 x 106 m/s while traveling a distance of

  92. physics

    An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.46 x 105 m/s to a final velocity of 2.25 x 106 m/s while traveling a distance of

  93. physics

    An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.11 x 105 m/s to a final velocity of 1.67 x 106 m/s while traveling a distance of

  94. Physics

    A uniform electric field exists in the region between two oppositely charged plane parallel plates. an electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate, 3.20 cm distant from the

  95. physics question

    A sphere with a mass of 2kg and a net charge -8 C is released from rest at the bottom of the electric field E. The sphere accelerates upward and travels 4m in 4s. Find the magnitude of the electric field. Use g = 10 m/s2. I am using m= 2kg, q= -8C, yf= 4m,

  96. Physics

    An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.06 105 m/s to a final velocity of +2.03 106 m/s while traveling a distance of

  97. Physics

    An electron is a subatomic particle (m = 9.11 *10^-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.31 * 10^5 m/s to a final velocity of +2.21 * 10^6 m/s while traveling a distance

  98. Physics II

    When an electron moves from A to B along an electric field line, the electric field does 3.94 x 10^-19 J of work on it. What are the electric potential differences (a) Vb - Va, (b) Vc - Va, and (c) Vc - Vb?

  99. physics

    An electron (q=-1.6x10^-19 C) is placed in an electric field created by a large positive charge. The strength of the field is 3.0x 10^6 N/C. a. What is the size of the force acting on the electron? b. Is the force on the electron exerted inward or outward?

  100. College Physics II

    An electric field of 2.04 kV/m and a magnetic field of 0.548 T act on a moving electron to produce no net force. If the fields are perpendicular to each other, what is the electron's speed?

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