Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 21, Problem 73P
In an early model of the hydrogen atom (the
r = n2a0, for n = 1, 2, 3, …,
where a0 = 52.92 pm. What is the speed of the electron if it orbits in (a) the smallest allowed orbit and (b) the second smallest orbit? (c) If the electron moves to larger orbits, does its speed increase, decrease, or stay the same?
Expert Solution & Answer
Trending nowThis is a popular solution!
Learn your wayIncludes step-by-step video
schedule06:35
Students have asked these similar questions
Answers: a) 3.3 C
c/m²
6. Two electrons are fixed 2.00 cm apart. Another electron is shot from infinity and comes to rest
midway between the two. What was its initial speed?
Answer: 318 m/s
Suppose an electron (q= -e = -1.6 x 10^-19 C, m = 9.1 x 10^-31 kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of the electron. Express numerical answer in two significant figures. Use the template in the attached photo to solve for the problem.
There are N = 2400 electrons moving in one dimension and they meet at the origin of
coordinates with a potential step of height Vo = 2,6eV. If each of the electrons have energy
E = 3,1eV. Find the quantity of electrons that pass to the other region and the kinetic
energy that they would carry.
Chapter 21 Solutions
Fundamentals of Physics Extended
Ch. 21 - Figure 21-11 shows 1 four situations in which five...Ch. 21 - Figure 21-12 shows three pairs of identical...Ch. 21 - Figure 21-13 shows four situations in which...Ch. 21 - Figure 21-14 shows two charged particles on an...Ch. 21 - In Fig. 21-15, a central particle of charge q is...Ch. 21 - A positively charged ball is brought close to an...Ch. 21 - Figure 21-16 shows three situations involving a...Ch. 21 - Figure 21-17 shows four arrangements of charged...Ch. 21 - Figure 21-18 shows four situations in which...Ch. 21 - In Fig. 21-19, a central particle of charge 2q is...
Ch. 21 - Figure 21-20 shows three identical conducting...Ch. 21 - Figure 21-21 shows four situations in which a...Ch. 21 - SSM ILW Of the charge Q initially on a tiny...Ch. 21 - Identical isolated conducting spheres 1 and 2 have...Ch. 21 - SSM What must be the distance between point charge...Ch. 21 - In the return stroke of a typical lightning bolt,...Ch. 21 - A particle of charge 3.00 106 C is 12.0 cm...Ch. 21 - ILW Two equally chained particles are held 3.2 ...Ch. 21 - In Fig. 21-23, three charged particles lie on an x...Ch. 21 - In Fig. 21-24, three identical conducting spheres...Ch. 21 - SSM WWW Two identical conducting spheres, fixed in...Ch. 21 - GO In Fig. 21-25, four particles form a square....Ch. 21 - ILW In Fig. 21-25, the particles have charges q1 =...Ch. 21 - Two particles are fixed on an x axis. Particle 1...Ch. 21 - GO In Fig. 21-26, particle 1 of charge l.0 C and...Ch. 21 - Three particles are fixed on an x axis. Particle 1...Ch. 21 - GO The charges and coordinates of two charged...Ch. 21 - GO In Fig. 21-27a, particle l of charge q1 and...Ch. 21 - In Fig.21-28a, particles 1 and 2 have charge 20.0...Ch. 21 - In Fig. 21-29a, three positively charged particles...Ch. 21 - SSM WWW In Fig. 21-26, particle 1 of charge q and...Ch. 21 - GO Figure 21-30a shows an arrangement of three...Ch. 21 - GO A nonconducting spherical shell, with an inner...Ch. 21 - GO Figure 21-31 shows an arrangement of four...Ch. 21 - GO In Fig. 21-32, particles 1 and 2 of charge q1 =...Ch. 21 - Two tiny, spherical water drops, with identical...Ch. 21 - ILW How many electrons would have to be removed...Ch. 21 - Prob. 26PCh. 21 - SSM The magnitude of the electrostatic force...Ch. 21 - A current of 0.300 A through your chest can send...Ch. 21 - GO In Fig. 21-33, particles 2 and 4, of charge e,...Ch. 21 - In Fig. 21-26, particles 1 and 2 are fixed in...Ch. 21 - ILW Earths atmosphere is constantly bombarded by...Ch. 21 - GO Figure 21-34a shows charged particles 1 and 2...Ch. 21 - Calculate the number of coulombs of positive...Ch. 21 - GO Figure 21-35 shows electrons 1 and 2 on an x...Ch. 21 - SSM In crystals of the salt cesium chloride,...Ch. 21 - Electrons and positrons are produced by the...Ch. 21 - Prob. 37PCh. 21 - GO Figure 21-37 shows four identical conducting...Ch. 21 - SSM In Fig. 21-38, particle 1 of charge 4e is...Ch. 21 - In Fig, 21-23, particles 1 and 2 are fixed in...Ch. 21 - a What equal positive charges would have to be...Ch. 21 - In Fig. 21-39, two tiny conducting balls of...Ch. 21 - a Explain what happens to the balls of Problem 42...Ch. 21 - SSM How far apart must two protons be if the...Ch. 21 - How many megacoulombs of positive charge are in...Ch. 21 - In Fig. 21-40, four particles are fixed along an x...Ch. 21 - GO Point charges of 6.0 C and 4.0 C are placed on...Ch. 21 - In Fig. 21-41, three identical conducting spheres...Ch. 21 - A neutron consists of ore up quark of charge 2e/3...Ch. 21 - Figure 21-42 shows a long, nonconducting, massless...Ch. 21 - A charged nonconducting rod, with a length of 2.00...Ch. 21 - A particle of charge Q is Fixed at the origin of...Ch. 21 - What would be the magnitude of the electrostatic...Ch. 21 - A charge of 6.0 C is to be split into two parts...Ch. 21 - Of the charge Q on a tiny sphere, a fraction is...Ch. 21 - If a cat repeatedly rubs against your cotton...Ch. 21 - We know that the negative charge on the electron...Ch. 21 - In Fig, 21-26, particle 1 of charge 80.0C and...Ch. 21 - What is the total charge in coulombs of 75.0 kg of...Ch. 21 - GO In Fig. 21-43, six charged particles surround...Ch. 21 - Three charged particles form a triangle: particle...Ch. 21 - SSM In Fig. 21-44, what are the a magnitude and b...Ch. 21 - Two point charges of 30 nC and 40 nC are held...Ch. 21 - Two small, positively charged spheres have a...Ch. 21 - The initial charges on the three identical metal...Ch. 21 - An electron is in a vacuum near Earths surface and...Ch. 21 - SSM In Fig. 21-26, particle 1 of charge 5.00q and...Ch. 21 - Two engineering students, John with a mass of 90...Ch. 21 - In the radioactive decay of Eq. 21-13, a 238U...Ch. 21 - In Fig. 21-25, four particles form a square. The...Ch. 21 - In a spherical metal shell of radius R, an...Ch. 21 - An electron is projected with an initial speed vl...Ch. 21 - In an early model of the hydrogen atom the Bohr...Ch. 21 - A100 W lamp has a steady current of 0.83 A in its...Ch. 21 - The charges of an electron and a positron are e...
Additional Science Textbook Solutions
Find more solutions based on key concepts
If someone at the other end of a room smokes a cigarette, you may breathe in some smoke. The movement of smoke ...
Campbell Essential Biology with Physiology (5th Edition)
Name the components (including muscles) of the thoracic cage. List the contents of the thorax.
Human Physiology: An Integrated Approach (8th Edition)
How is the bilaminar embryonic disc formed? ^
Principles of Anatomy and Physiology
Describe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative posi...
Organic Chemistry (8th Edition)
Where is transitional epithelium found and what is its importance at those sites?
Anatomy & Physiology (6th Edition)
6.1 State the number of electrons that be must be lost by atoms of each of the following to achieve a stable el...
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- In the Bohr model of the hydrogen (H) atom, the electron moves on a circular path (orbit) around the nucleus,which consists of a single proton. In the ground state of H (the lowest energy level of H), the electron orbitsthe proton at a distance of 0.529 A (or 5.29 × 10^−11 m; 1 A˚ = 10^−10 m) with a linear speed of 2.19 × 10^6 m/s.(a) What is the angular speed of the electron?(b) How many orbits around the proton does the electron make each second?(c) What is the electron’s centripetal acceleration?arrow_forwardA hydrogen atom when in its lowest energy state consists of a proton nucleus of charge +e (remember that +e = 1.6 x 10-19 C) and an electron of charge -e and mass of 9.1 x 10-31 kg. In the Bohr model of the atom, the electron moves around the nucleus in an approximately circular orbit with a radius of 0.52 x 10-10 m. The speed of the electron when in this lowest energy orbit is approximately 2.3 x 106 m/s. Imagine that we want to ionize this atom (that is free up the electron from its nucleus) by launching ANOTHER electron at the atom to break it apart. If we were to launch this electron from very far away from the atom, then how fast must it be launched in order to break apart the atom, so that all three particles (the proton and two electrons) end up at rest, very far apart?arrow_forwardSuppose an electron (g= - e= -1.6x 10-19 C ,m=9.1× 10-31 kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of the electron. Express numerical answer in two significant figures. The potential energy U is related to the electron charge (-e) and potential vab is related by the equation: U= Assuming all potential energy U is converted to kinetic energy K, K + U = 0 K = -U Since K=mv and using the formula for potential energy above, we arrive at an equation for speed: v = ( 1/2 Plugging in values, the value of the electron's speed is: V= x 107 m/sarrow_forward
- In the Rutherford model of the hydrogen atom, a proton (mass M, charge Q) is the nucleus and an electron (mass m, charge q) moves around the proton in a circle of radius r. Let k denote the Coulomb force constant (1/4TTE0) and G the universal gravitational constant. The ratio of the electrostatic force to the gravitational force between electron and proton is: O kMm/GQq O kQq/GMm O GQq/kMm O GMm/kQq O kQq/GMmr²arrow_forwardSuppose an electron (q= -e= -1.6 x 10-19 C,m=9.1x 10-31 kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of the electron. Express numerical answer in two significant figures. The potential energy U is related to the electron charge (-e) and potential Vab is related by the equation: U = Assuming all potential energy U is converted to kinetic energy K, K +U = 0 K = -U Since K- and using the formula for potential energy above, we arrive at an equation for speed: v = ( 51/2 Plugging in values, the value of the electron's speed is: V= x 107 m/sarrow_forwardSo Prof. P takes 2 handy metal plates and places them parallel to each other. He carefully adjusts them so they are 8.53 cm apart from each other and whips up a power supply to create a electric potential of 93 Volts between the plates. He notices there is a tiny hole on the positive plate so he decides to shoot a strangely handy electron straight through the hole at 3,950,851 m/s. Why? Who knows? How far in meters will the hapless electron travel from the positive plate until it stops?arrow_forward
- In nuclear fission, a nucleus splits roughly in half. A. What is the potential 4.00 x 10-14 m from a fragment that has 50 protons in it? (p=+1.602x10-19 C) →Why 1.8 MV is the answer for this problem?arrow_forwardThe uniform electric field between two charged parallel plates has a magnitude of 4400 V/m (note that 1 V/m = 1 N/C). If the plates are separated by 0.0100 m and an electron is released from the far negative side of the gap, what will the electron's kinetic energy (in eV) and speed be when it just reaches the positive plate? Note that the electron charge = -1.602 x 10-19 C and the electron mass = 9.11 x 10-31 kg. KE V= ev m/sarrow_forwardA hydrogen atom contains a single electron that moves in a circular orbit about a single proton. Assume the proton is stationary, and the electron has a speed of 9.2 *105 m/s. Find the radius between the stationary proton and the electron orbit within the hydrogen atom.arrow_forward
- 1) A proton (p) and electron (e-) are released when they are 4 Å (4 Angstroms). Find the initial accelerations of each particle, from one of the selections below. a) a(p) = 8.63 x 1017 m/s2, a(e-) = 1.58 x 1021 m/s2; b) a(p) = 3.4 x 1018 m/s2, a(e-) = 6.3 x 1021 m/s2; c) a(p) = 4.315 x 1016 m/s2, a(e-) = 7.9 x 1020 m/s2; d) a(p) = 3.45 x 1018 m/s2, a(e-) = 6.32 x 1021 m/s2. 1) Two small spheres are placed a distance 20 cm apart and have equal charge. How many excess electrons must be placed on each sphere if the magnitude of the Coulomb repulsive force is F = 3.33 x 10-21 N? a) 2 x 103; b) 350; c) 760; d) 1.2 x 103. 3）Three individual point charges are placed at the following positions in the x-y plane: Q3 = 5.0 nC at (x, y) = (0,0); Q2 = -3.0 nC at (x, y) = (4 cm, 0); and Q1 = ? nC at (x, y) = (2 cm,0); What is the magnitude, and sign, of charge Q1 such that the net force exerted on charge Q3, exerted by charges Q1 and Q2, is zero? a) Q1 = + 0.5 nC; b) Q1 = - 0.25 nC; c) Q1 = +…arrow_forwardWhy is the following situation impossible? An experimenter is accelerating electrons for use in probing a material. She finds that when she accelerates them through a potential difference of 84.0 kV, the electrons have half the speed she wishes. She quadruples the potential difference to 336 kV, and the electrons accelerated through this potential difference have her desired speed.arrow_forwardSuppose an electron (q = - e= - 1.6 x 10-19 C.m = 9.1 x 10-31 kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of the electron. Express numerical answer in two significant figures. The potential energy U is related to the electron charge (-e) and potential Vab is related by the equation: U = Assuming all potential energy U is converted to kinetic energy K, K+U= 0 K= -U 1 Since K=mv and using the formula for potential energy above, we arrive at an equation for speed: 1/2 Plugging in values, the value of the electron's speed is: x 107 m/s V=arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY