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A proton (mass = 1.67 × 10−27 kg) has a kinetic energy of 0.8
MeV. If its momentum is measured with an uncertainty of 1.29%, what
is the minimum uncertainty in its position? (h = 6.63 × 10−34 J⋅s
and 1 eV = 1.6 × 10−19 J)
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The energy of a proton is 1.0 MeV below the top of a 1.2-MeV-high energy barrier that is 6.8 fm wide. What is the probability that the proton will tunnel through the barrier? (1 eV = 1.60 x 10-19 J, Mproton = 1.67 x 10-27 kg, -h = 1.055 x 10-34 J·s, h = 6.626 x 10-34). s) 1) 11% O2) 9.1% O 3) 14% 4) 7.5%
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A proton (rest mass is 1.673 times 10^-27 kg, rest energy is 938.3 MeV) has kinetic energy of 2500 MeV. find its momentum (in kg-m/s) (use relativistic relations) find its wavelength if one measures the proton's position to an uncertainty delta x of + l-5.60 times 10^-14 m. find the minimum possible uncertainty in the proton's momentum A panicle of mass 6.646 times 10^-27 kg is confined to a one-dimensional box of length 3.0 times 10^-14 m. What wavelength photon...
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10. An proton-antiproton pair is produced by a 2.10 x 103 MeV photon. What is the kinetic energy of the antiproton if the kinetic energy of the proton is 55.95 MeV? Use the following Joules-to-electron-Volts conversion leV = 1.602 x 10-19 J. The rest mass of a proton is 1.67 x 10-27 kg. * Blank MeV 4. What is the frequency of a photon that has the same momentum as a neutron moving with a speed of 1.60 x 10²...
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1) A uniform electric field of magnitude 411 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?
(b) What is the change in potential energy associated with the
electron?
(c) What is the velocity of the electron?
magnitude ms?
direction ? (+x, -x, +y, -y)
2) A 11.0-V battery is connected to a 4.40-μF...
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0/10 points 1 Provious A light rod of length-1.00 m rotates about an axis perpendicular to connected to the ends of the rod length and passing through its center as in the figure below. Two particles of masses m - 4.35 kg and m2-3.00 kg are (o) Neglecting the mass of the rod, what is the system's kinetic energy when its angular speed is 2.0 radys? Your response differs from the correct answer by more than 10%. Double check your...
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PROBLEM (a) Find the speed of the proton at x 0.0500 m if s released from rest at x -2.00 cm in a constant electric field with magnitude 1.50 x 103 N/C, pointing in the positive direction. (b) Find the initial speed of an electron fired from x 2.00 cm given that its speed has fallen by half when it reaches x 0.120 m STRATEGY Apply conservation of energy, solving for the unknown speeds. Part (b) involves two equations: the...
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I need help solving this problem. Thanks in advance. If correct,
I will leave a like and a comment!
Practice Problem 18.3 Constants Now let's look at the potential energy of a charge that is in the vicinity of two other charges. Suppose two electrons are held in place 10.0 cm apart. Point a is midway between the two electrons, and point b is 12.0 cm directly above point a. (a) Calculate the electric potential at point a and at...
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Rotational Dynamics Assignment (200 Points) • Due Friday, July 31 at 5:00 pm Equations are in a separate document entitled “Equations for Rotational Dynamics Assignment” • Moments of inertia formulas are provided on the last page of this document • Show all of your work when solving equations. It is not sufficient to merely have a correct numerical answer. You need to have used legitimate equations and algebra. You also need to have correctly used the data. • Units must...
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1. Parallel plates. You have two equal but oppositely charged parallel conducting plates, separated by 10 cm. A voltmeter shows that the potential difference between the plates is 500 V. (a) Which is at a higher potential, the positive or negative plate? (b) How big is the electric field between the plates? (c) You let go of an electron next to the negative plate. How much work does the electric field do in moving the electron to the positive plate?...
The energy of a proton is 1.0 MeV below the top of a 1.2-MeV-high energy barrier that is 6.8 fm wide. What is the probability that the proton will tunnel through the barrier? (1 eV = 1.60 x 10-19 J, Mproton = 1.67 x 10-27 kg, -h = 1.055 x 10-34 J·s, h = 6.626 x 10-34). s) 1) 11% O2) 9.1% O 3) 14% 4) 7.5%
A proton (rest mass is 1.673 times 10^-27 kg, rest energy is 938.3 MeV) has kinetic energy of 2500 MeV. find its momentum (in kg-m/s) (use relativistic relations) find its wavelength if one measures the proton's position to an uncertainty delta x of + l-5.60 times 10^-14 m. find the minimum possible uncertainty in the proton's momentum A panicle of mass 6.646 times 10^-27 kg is confined to a one-dimensional box of length 3.0 times 10^-14 m. What wavelength photon...
10. An proton-antiproton pair is produced by a 2.10 x 103 MeV photon. What is the kinetic energy of the antiproton if the kinetic energy of the proton is 55.95 MeV? Use the following Joules-to-electron-Volts conversion leV = 1.602 x 10-19 J. The rest mass of a proton is 1.67 x 10-27 kg. * Blank MeV 4. What is the frequency of a photon that has the same momentum as a neutron moving with a speed of 1.60 x 10²...
0/10 points 1 Provious A light rod of length-1.00 m rotates about an axis perpendicular to connected to the ends of the rod length and passing through its center as in the figure below. Two particles of masses m - 4.35 kg and m2-3.00 kg are (o) Neglecting the mass of the rod, what is the system's kinetic energy when its angular speed is 2.0 radys? Your response differs from the correct answer by more than 10%. Double check your...
PROBLEM (a) Find the speed of the proton at x 0.0500 m if s released from rest at x -2.00 cm in a constant electric field with magnitude 1.50 x 103 N/C, pointing in the positive direction. (b) Find the initial speed of an electron fired from x 2.00 cm given that its speed has fallen by half when it reaches x 0.120 m STRATEGY Apply conservation of energy, solving for the unknown speeds. Part (b) involves two equations: the...
I need help solving this problem. Thanks in advance. If correct,
I will leave a like and a comment!
Practice Problem 18.3 Constants Now let's look at the potential energy of a charge that is in the vicinity of two other charges. Suppose two electrons are held in place 10.0 cm apart. Point a is midway between the two electrons, and point b is 12.0 cm directly above point a. (a) Calculate the electric potential at point a and at...
Rotational Dynamics Assignment (200 Points) • Due Friday, July 31 at 5:00 pm Equations are in a separate document entitled “Equations for Rotational Dynamics Assignment” • Moments of inertia formulas are provided on the last page of this document • Show all of your work when solving equations. It is not sufficient to merely have a correct numerical answer. You need to have used legitimate equations and algebra. You also need to have correctly used the data. • Units must...
1. Parallel plates. You have two equal but oppositely charged parallel conducting plates, separated by 10 cm. A voltmeter shows that the potential difference between the plates is 500 V. (a) Which is at a higher potential, the positive or negative plate? (b) How big is the electric field between the plates? (c) You let go of an electron next to the negative plate. How much work does the electric field do in moving the electron to the positive plate?...