Look at correct answer and just show all work A free electron has a kinetic energy 13.3eV and is incidenton a potential energy barrier of U=32.1eV and width w =0.091nm. What isthe probability for the electron to penetrate this barrier (in %)?You Answered27.36Correct Answer1.7548 margin of error +/- 1%

Answered: Image /qna-images/answer/2d47af4a-eefc-4df6-817d-c4f32428925c.jpg

Answered: A free electron has a kinetic energy…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Quantum Physics

Section: Chapter Questions

Problem 13P

See similar textbooks

Similar questions

36.7. If 2 = .09 and initially N = 10, what is the probability that N = 12 one year later? What is the probability that N= 12 two years later? Use the equation below to estimate the probability of N=10 (No+j-1)(No+j-2)...N 0が j! |
What constraints does the uncertainty principle place on our knowledge of the world? To get a sense of scale, we’ll look at the uncertainty in speed for a confined electron and for a confined dust particle.a. What range of velocities might an electron have if confined toa 0.30-nm-wide region, about the size of an atom?b. A 1.0@mm@diameter dust particle (m ≈ 10-15 kg) is confined within a 5-μm-long box. Can we know with certainty if the particle is at rest? If not, within what range is its velocity likely to be found?
A. If the position of a chlorine ion in a membrane is measured to an accuracy of 1.50 µm, what is its minimum uncertainty in velocity (in m/s), given its mass is 5.86 10-26 kg? B. If the ion has this velocity, what is its kinetic energy in eV? (Compare this with typical molecular binding energies of about 5 eV.)
The chemical potential of an ideal gas Use as ƏN E,V V S(E,V, N) = Nk| ln N 3 In 2 3Νπh? a. Derive the dependence of the chemical potential u on E, V, and N for an ideal classical gas. b. Use 3 E = -NkT. to determine µ(T, V, N)
Q.2: Calculate the lougest wavelength for electron revolving in the fifth excited silicon atom, drops into third state and then to first excited state, if the nucleus charge is 4.8X10 C. Q.3: Find the conductivity, if the resistance is 3 kn, length is 10 m, area is 2 m', and the carrying curent is 2 mA. Q4: Find the fraction of the body centered cubic unit cell volume filled with hard spheres as shown in figure below if the total volume of cell (cubic) is 343 cm.
Pr. 5. Calculate the force between the two atoms in the diatomic hydrogen molecule that has the following potential: V(x)=(x-xo)²-Vo. Where Vo is the binding energy and ro. 6 are constant parameters.
H.w/ find the 0/p of PCM for i/p signal x(t) = 3.5sin(2000nt) the sampling frequency 5 kHz for 0
C. For a particle of mass 9.10938356×10-31 kg scooting back and forth on a wire of length 13×10-10 m, compute it's energy in the n = 9 state. Use: π = 3.14159265359 and h = 1.0545718×10-34 Js. Eg J. D. What is the rule for the number of nodes for a particle-in-a-box state as a function of its quantum number? Number of nodes = On ΟΙ O n-1 On--1
Two copper nanowires are insulated by a copper oxide nano-layer that provides a 10.0-eV potential barrier. 1. Estimate the tunneling probability between the nanowires by 7.00-eV electrons through a 5.00-nm thick oxide layer. 2. What if the thickness of the layer were reduced to just 1.00 nm? (Hint: the rest mass of the electron (m) = 511 keV/c, ħ = 0.1973 keVnm/c)
An electron is located on a pinpoint having a diameter of 7.71 µm. What is the minimum uncertainty in the speed of the electron? m/s Need Help? Read It
4. A simple model of a radioactive nuclear decay assumes that alpha particles are trapped inside a nuclear potential well. An alpha particle is a particle made out of two protons and two neutrons and has a mass of 3.73 GeV/c². The nuclear potential can be modeled as a pair of barriers each with a width of 2.0 fm and a height of 30.0 MeV. Find the probability for an alpha particle to tunnel across one of the potential barriers if it has a kinetic energy of 20.0 MeV.
6. An electron in hydrogen atom is in initial state Þ(r, 0) = A(2410o + iÞ210 + 421–1 – 2ib211) where wnim are the eigenfunctions of the hydrogen atom a. Determine the constant A b. What is the probability of finding the electron in the first excited state? hw = - n2 c. Write the state Þ(r, t) at time t, using energy eigenvalues as En d. Find the expectation value of L in the state Þ(r,t e. Find the expectation values of Lx and Ly in the state (r, t f. If measurement of Lz led to the value –ħ what will be results of measurement of energy and the square of total orbital momentum immediately afterwards and what are their probabilities?

SEE MORE QUESTIONS

Recommended textbooks for you

Principles of Physics: A Calculus-Based Text

Physics

ISBN:

9781133104261

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Principles of Physics: A Calculus-Based Text

Physics

ISBN:

9781133104261

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS

A free electron has a kinetic energy 13.3eV and is incident on a potential energy barrier of U=32.1eV and width w =0.091nm. What is the probability for the electron to penetrate this barrier (in %)? You Answered 27.36 Correct Answer 1.7548 margin of error +/- 1%