# An electron with a mass of 9.11 *10^31 Kg is accelerated from rest across a set if parallel plates that have a potential difference of 150 v and are separated by 0.80 cm A) determine the kinetic energy of the

57,399 results
1. ## 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,

2. ## science

an electron moves a distance of 6.0 cm when accelerated from rest by an electric field of strength 2*10^4 n/c . Calculate the time of travel?

3. ## physics

An electron is accelerated by a 4.7 kV potential difference. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 8.0 cm?

4. ## physics

An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 5400V . It then passes between two horizontal plates 6.1cm long and 1.2cm apart that have a potential difference of 250V At what angle will the

5. ## physics

An electron is accelerated from rest to a velocity of 2.0x10^7 m/s. a) if the electron travelled 0.10m while it was being accelerated, what was its acceleration? b)How long did the electron take to attain its final velocity? Please correct me if I'm wrong

6. ## physics

An electron is accelerated from rest through a potential difference that has a magnitude of 2.90 × 107 V. The mass of the electron is 9.11 × 10-31 kg, and the negative charge of the electron has a magnitude of 1.60 × 10-19 C. (a) What is the

7. ## physics

In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 25000V. The speeds of the electrons are quite large, and for accurate calculations of the speeds, the effects of special

8. ## Physics

An electron with a mass of 9.11 *10^31 Kg is accelerated from rest across a set if parallel plates that have a potential difference of 150 v and are separated by 0.80 cm A) determine the kinetic energy of the electron after it crosses between the plates.

9. ## 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

10. ## 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?

11. ## physics

An electron is accelerated in the uniform field E = 2.0 x 104 N/C between two parallel charged plates (Negative charged plate is on the left and positively charges plate is on the right). The separation of the plates is 1.5 cm. The electron is accelerated

12. ## PHYSICS 2

An electron in an x-ray machine is accelerated through a potential difference of 1x10^4 V before it hits the target. What is the kinetic energy of the electron in electron volts?

13. ## physics

An electron accelerated from rest through a potential difference of 50v acquires a speed of 4.2x10^6m/s write down the speed that a potential difference of 200v would produce ?

14. ## Physics

An electron at rest of mass 9.11x10^−31 kg is accelerated through a potential difference of 350 V. It then enters some deflecting plates of 50 V with dimensions as shown. Calculate the distance,x, or of the deflection of the electron. The charge on an

15. ## Physics

An electron (mass m = 9.11e-31 kg) is accelerated in the uniform field E (E = 2.00e4 N/C) between two parallel charged plates. The separation of the plates is 1.10 cm. The electron is accelerated from rest near the negative plate and passes through a tiny

16. ## 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

17. ## physics

An electron (mass m = 9.11 * 10^-31 kg) is accelerated in a uniform field vector E ( E =1.45 * 10^4 N/C) between two parallel charged plates. The seperation of the plates is 1.10 cm. The electron is accelerated from rest near the negative plate and passes

18. ## physics

The physics of an electron moving from one plate to another. An electron acquires 4.2 x 10-16 J of kinetic energy when it is accelerated by an electric field from Plate A to Plate B. What is the potential difference between the plates, and which plate is

19. ## 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

20. ## Physics

The anode (positive terminal) of an X-ray tube is at a potential of +125000 V with respect to the cathode (negative terminal). (a) How much work (in joules) is done by the electric force when an electron is accelerated from the cathode to the anode? (b) If

21. ## 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

22. ## physics

An electron in the beam of a typical television picture tube is accelerated through a potential difference of 20V before striking the face of the tube. What is the energy of this electron, in Joules and in electron volts, and what is its speed when it

23. ## 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

24. ## Physics

An electron is accelerated from rest through a potential difference that has a magnitude of 2.70 × 107 V. The mass of the electron is 9.11 × 10-31 kg, and the negative charge of the electron has a magnitude of 1.60 × 10-19 C. (a) What is the

25. ## College Physics

An electron is accelerated through 2550 V from rest and then enters a region where there is a uniform 1.30 T magnetic field. What are the maximum and minimum magnitudes of the magentic force acting on this electron?

26. ## Physics pls help

An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1

27. ## Physics

The anode (positive terminal) of an X-ray tube is at a potential of +115 000 V with respect to the cathode (negative terminal). (a) How much work (in joules) is done by the electric force when an electron is accelerated from the cathode to the anode? (b)

28. ## Physics

An electron, initially at rest is accelerated through a potential difference of 550 V. What is the speed of the electron due to this potential difference?

29. ## physics

an electron is accelerated from rest through a potential difference V. If the electron reaches a speed of 9.11*x10^6 m/s, what is the potential difference?

30. ## Science

Use the following values for mass and charge: an electron has mass me = 9.11×10-31 kg and charge -e, a proton has mass mp = 1.67×10-27 kg and charge +e, an alpha particle has mass malpha = 6.65×10-27 kg and charge +2e, where e = 1.60×10-19 C. An

31. ## Science

Use the following values for mass and charge: an electron has mass me = 9.11×10-31 kg and charge -e, a proton has mass mp = 1.67×10-27 kg and charge +e, an alpha particle has mass malpha = 6.65×10-27 kg and charge +2e, where e = 1.60×10-19 C. An

32. ## Physics

A free nuetron can decay into a proton, an electron, and a neutrino.Assume the neutrino's rest mass is zero, and the rest masses for proton and electron are 1.6726*10^-27 kg and 9.11*10^-31 kg. Determine the total kinetic energy shared among the three

33. ## PHYSICS

An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 1.00 × 104 V. (a) Find the final velocity after the original acceleration period. (b) It then passes between two horizontal plates 6.0 cm long and

34. ## PHYSICS

In Figure below, an electron accelerated from rest through potential difference V1=0.955 kV enters the gap between two parallel plates having separation d = 18.2 mm and potential difference V2= 160 V. The lower plate is at the lower potential. Neglect

35. ## 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

36. ## physics

a car of mass(m)800kg initially at rest is accelerated at rate of 4m/s calculate the k.e @ 5seconds

37. ## Physics

A body of mass 5kg start from rest and is acted upon by a force 1000n ,the accelerated in m5 and final velocity after 10 secs will be what

38. ## 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

39. ## Physics

A proton is accelerated from rest through a 5.70-V potential difference. (a) What is the proton's speed after it has been accelerated? (b) What is the maximum magnetic field that this proton produces at a point that is 4.00 m from the proton? (Enter the

40. ## Chemistry

The resolution limit of a microscope is roughly equal to the wavelength of light used in producing the image. Electron microscopes use an electron beam (in place of photons) to produce much higher resolution images, about 0.16 nm in modern instruments.

41. ## CHEMISTRY

TO WHAT SPEED MUST AN ELECTRON BE ACCELERATED FOR IT TO HAVE A WAVELENGTH OF 3.0CM?

42. ## 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

43. ## math

the electron beam in a television tube consists of electrons accelerated from rest through a potential difference of about 20000v.what is the speed of the electrons?(ignore relativistic effects).electron rest mass is 9.11 X 10^-31kg and electron charge is

44. ## physics

an electron with a mass of 9.11 x 10^-31 kg is accelerated from rest across a set of 150 V and are separated by 0.80 cm. a) determine the kinetic energy of the electron after it crosses between the plates.( ans 2.4 * 10^-17 j) b) determine the final speed

45. ## physics

The electron beam in a television tube consist of electrons accelerated from rest through a potential difference of about 20000v. What is the speed of the electrons?(ignore relativistic effects). Electron rest mass is 9.11/times10^(-31)kg and electronic

46. ## Physics

An electron is accelerated through 2200 V from rest and then enters a region where there is a uniform 1.30 T magnetic field directed perpendicularly to the electron's velocity.

47. ## Physics

The anode (positive terminal) of an X-ray tube is at a potential of +105000 V with respect to the cathode (negative terminal). (a) How much work (in joules) is done by the electric force when an electron is accelerated from the cathode to the anode? J (b)

48. ## science

An electron had a constant acceleration of +3.2m/s^2. At a certain instant its velocity is +9.6m/s. What is its velocity at a)2.5 s earlier and b )2.5s later? I will be happy to critique your work. I could a= change in velocity / change in time ? Here's

49. ## physics

A net force of 1.6×10−15 N acts on an electron over a displacement of 5.0 cm, in the same direction as the net force. (a) What is the change in kinetic energy of the electron in joules? (b) If the electron was initially at rest, what is the speed of the

50. ## Physics (Mechanics)

An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable electron is given by the function F = 2.3E-28/r^2, where r is the distance between the electrons. Find the maximum velocity (in

51. ## physics

A horizontal force of 20 N acted on a 10 kg mass at rest. The force accelerated the mass over a rough surface so that the mass had a speed of 6.0 m/s after 5.0 seconds. How much friction was acting on the mass?

52. ## 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...

53. ## Physics

An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. use newton's laws to determine the electron's velocity after it moves .10 cm

54. ## physics

in an electron microscope, a tungstun cathode with work function 4.5 eV is heated to release electrons that are then initially at rest just outside the cathode. The electrons are accelerated by a potential difference to create a beam of electrons with a de

55. ## Physics

A 7uF capacitor is charged to a potential difference of 110V The electrical energy stoed in the capacitor is (4.2x10^-2 was the given answer) but I used C=Q/V and keep getting 7.7x10^-4 also A particle of charge Q and mass m is accelerated from rest

56. ## Phsyics

Can someone give me some pointers on calculating the rest energy of a positron (a particle that has the same mass as an electron and equal but opposite charge) ? thanks The rest energy is equal to the mass times the speed of light squared.

57. ## Physics

An electron is accelerated through 2300 V from rest and then enters a uniform 1.90 T magnetic field. (a) What is the maximum value of the magnetic force this charge can experience? (b) What is the minimum value this charge can experience?

58. ## PHYSICS

An electron is initially at rest in, but not on the axis of, a solenoid that is carrying a steady current I directed as shown in the cross section below. The electron is initially at rest on the -x axis. The current in the solenoid is suddenly increaed to

59. ## Physics *work shown ~ pls help!

An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1

60. ## College Chemistry

Write a complete set of quantum numbers for the 5th electron added to H ion..(5th electron in any electron configuration). n= l= m(l)= m(s)=

61. ## Physics ~work shown pls help!

An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1

62. ## Physics (Kinematics)

In a television tube, the electron travels from an electron gun to the screen 0.45m away in 6.0×10exponent-9seconds. If the electron starts at rest, what is its final speed when it hots the screen? ( I have the answer,but I don't know how to get it)

63. ## physics

An electron is accelerated from rest through 2310V and then enters a region where there is a uniform 1.59-T magnetic field. What is the maximum force on the electron? Answer in units of Newtons.

64. ## kendriya vidyalaya

an electron initially at rest is accelerated through a potential difference of 100 volts. find its final kinetic energy in electron volts?

65. ## 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?

66. ## physics

i posted this before but no one answered. please help me: A net force of 1.6×10−15 N acts on an electron over a displacement of 5.0 cm, in the same direction as the net force. (a) What is the change in kinetic energy of the electron? (b) If the electron

67. ## Physics (Mechanics) - unanswered

An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable electron is given by the function F = 2.3E-28/r^2, where r is the distance between the electrons. Find the maximum velocity (in

68. ## physics

In a television set, electrons are accelerated from rest through a potential difference of 18 kV. The electrons then pass through a 0.34 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic

69. ## 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

70. ## PHYSICS

An electron in a TV is accelerated toward the screen across a potential difference of 52.8 kV. How much kinetic energy does the electron gain while accelerating? How would you solve this?

71. ## physics

An electron in a vacuum is first accelerated by a voltage of 15600 V and then enters a region in which there is a uniform magnetic field of 0.689 T at right angles to the direction of the electron’s motion. What is the force on the electron due to the

72. ## Physics

A newly discovered particle, the SPARTYON, has a mass 895 times that of an electron. If a SPARTYON at rest absorbs an anti-SPARTYON, what is the frequency of each of the emitted photons (in 1020 Hz)? The mass of an electron is 9.11×10-31 kg.

73. ## physics

Q1) consider a stationary nucleus of mass M. show that the minimum energy the photon must have to create an electron-positron pair in the presence of stationary nucleus is 2mc^2(1+ m/M) where m is the rest mass of the electron.

74. ## physics

consider a stationary nucleus of mass M. show that the minimum energy the photon must have to create an electron-positron pair in the presence of stationary nucleus is 2mc^2(1+ m/M) where m is the rest mass of the electron.

75. ## Physics Mechanics (unsolved)

An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable electron is given by the function F = 2.3E-28/r^2, where r is the distance between the electrons. Find the maximum velocity (in

76. ## physics

A proton of mass mp = 1.67 x 10-27 kg and charge +e = 1.60 x 10-19 C is accelerated from rest through an electric potential of 400 kV. What is its final velocity?

77. ## Physics

A motorcycle with a mass of 350 kg is accelerated from rest to a velocity of 30 m/s by a force of 4000 N. calculate the distance over which this acceleration occurred.

78. ## physics

a)find the charge to mass ratio for an electron accelerated through 600v in a magnetic field of strength 45mT where the speed of the electrons is 1.4*10^7m/s b)what is the percentage difference b/n your result and the accepted ratio with the value

79. ## physics

An electron, mass m = 9.11 × 10-31 kg, collides head-on with a neutral atom, mass M = 118.57 × 10-27 kg, initially at rest. As a result of the collision, a characteristic amount of energy E = 85 × 10-17 J is stored internally in the atom. What is the

80. ## Physics

Electrons are accelerated in the picture tube through a potential difference of 8000 V. What is the change in the potential energy of each electron traveling in this tube? charge of -e is 1.6E-19 C and its mass is 9E-31 kg.

81. ## physics

Can anyone please help me with this? : An electron of mass 9.11 x 10^-31 kg is accelerated by a constant force along the direction of its motion from 2 x 106 m/s to 8 x 106 m/s within 2.00 cm. What is the magnitude of the force?

82. ## More Darn Physics

what force must be exerted on an electron to move it from a state of rest to a speed of 3.5 x 10^7 m/s in a distance of 0.75 m? Look up the mass of the electron and call it m. Then compute the required acceleration a, using V = sqrt(2 a X) (Solve that for

83. ## Physics

Two electrons are separated by 1 meter. What is the ratio of the magnitude of the electric force on one electron and the gravitational force on that electron due to the other electron? The charge of an electron is 1.6×10−19C and its mass is

84. ## physic

Does anybody know how I can find the mass of the electron for this question. I need to find it first to solve for the real one but don't see mass anywhere in the question.I see radiant and speed but no mass The radius of circular electron orbits in the

85. ## Physics

Suppose a spacecraft of rest mass 34000 kg is accelerated to 0.206c. How much kinetic energy would it have? If you used the classical formula for KE, by what percentage would you be in error? Do not enter units.

86. ## Physics

A photon of energy E strikes an electron at rest undergoes pair production, producing a positive electron(positron) and an electron, photon+electron produce positron+electron+electron The two electrons and the positron move off with identical momenta in

87. ## CHEMISTRY

You are conducting experiments with your x-ray diffractometer. (a) A specimen of molybdenum is exposed to a beam of monochromatic x-rays of wavelength set by the Kα line of silver. Calculate the value of the smallest Bragg angle, θhkl, at which you can

WHO MADE THESE ATOMIC DISCOVERIES? An atom has a nucleus that is very small In a reaction, the mass of the products must equal the mass of the reactants. Electrons are negatively charge pieces of matter. An electron has a mass that is very small compared

89. ## 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

90. ## math

What's kinetic energy in electron volts of triply ion of iron which has been accelerated from rest through a potential difference of 100v?

91. ## physics

What's kinetic energy in electron volt of a triply ion iron which has been accelerated from rest through a potential difference of 100v?

92. ## physics 30

An electron that has a distance of 10.0 cm , is accelerated from rest through a potential difference of 4.50 kV before it enters a region between perpendicular elecric and magnetic fields. The electron moves into a region between positively charged plate

93. ## Physics

An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 1.00 × 104 V. (a) Find the final velocity after the original acceleration period. (b) It then passes between two horizontal plates 6.0 cm long and

94. ## Physics

In a 100 m linear accelerator, an electron is accelerated to 1.40% of the speed of light in 46.0 m before it coasts for 54.0 m to a target. What's the electron's acceleration during the first 46.0 m? b) How long does the total flight take?

95. ## physics

Find the final speed gained by a proton when it is accelerated from rest through a potential difference of 100 volts. Also find its final kinetic energy in electron volt

96. ## PHYSICS

An electron gun is a device that sets up an electric field between two plates. The electrons start on the negative plate and thenare accelerated toward the positive plate and out a small hole in its middle if an electron in the gun feels the effect of

97. ## Chemistry

You are conducting experiments with your x-ray diffractometer. (a) A specimen of molybdenum is exposed to a beam of monochromatic x-rays of wavelength set by the Kα line of silver. Calculate the value of the smallest Bragg angle, θhkl, at which you can

98. ## CHEMISTRY

You are conducting experiments with your x-ray diffractometer. (a) A specimen of molybdenum is exposed to a beam of monochromatic x-rays of wavelength set by the Kα line of silver. Calculate the value of the smallest Bragg angle, θhkl, at which you can

99. ## 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

100. ## quantum physics

To what speed must an electron be accelerated for it to have a wavelenght of 3.0cm?