Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 26, Problem 14Q
To determine
The possibility of a single hydrogen atom to be created as a virtual pair consisting of a positively charged proton and a negatively charged electron.
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The protons in a nucleus are approximately 2 x 10-15 m apart. Consider the case where the protons are a distance d =
between two protons at this distance.
N
2.02 x 10-15
m apart. Calculate the magnitude of the electric force (in N)
7) This time you put a nucleus with 11 protons on the x-axis at x = 6.1 Angstroms. There will be a place on the x-axis where the total electric field is zero. At what value of x does this occur?
1.68 Angstroms
0.84 Angstroms
-2.63 Angstroms
-2.10 Angstroms
8) Please answer this question!!
Now you have a nucleus with 14 protons, placed at x = 3.2 Angstroms. What what TWO values of x (along the x-axis) will the total electrostatic potential V be equal to zero?
-0.13 Angstroms and 0.13 Angstroms
0.13 Angstroms and -0.13 Angstroms
-0.25 Angstroms and 0.21 Angstroms
0.25 Angstroms and -0.21 Angstroms
Considering electron and proton as two charged particles separated by d = 5.7 × 10-11 m calculate the gravitational force between the proton and
electron and find its ratio to the Coulomb force. Take the mass of the proton 1.7 × 10¬2 kg, the mass of the electron 9.1 × 10¬3' kg, the value of the universal
1
= 9 x 10° m/F. Give the answer for the gravitational force in 10"
gravitational constant 6.7 x 10-11 N kg?m² , the electron charge –1.6 × 10-19 c and
4πεο
47 N.
Chapter 26 Solutions
Universe: Stars And Galaxies
Ch. 26 - Prob. 1QCh. 26 - Prob. 2QCh. 26 - Prob. 3QCh. 26 - Prob. 4QCh. 26 - Prob. 5QCh. 26 - Prob. 6QCh. 26 - Prob. 7QCh. 26 - Prob. 8QCh. 26 - Prob. 9QCh. 26 - Prob. 10Q
Ch. 26 - Prob. 11QCh. 26 - Prob. 12QCh. 26 - Prob. 13QCh. 26 - Prob. 14QCh. 26 - Prob. 15QCh. 26 - Prob. 16QCh. 26 - Prob. 17QCh. 26 - Prob. 18QCh. 26 - Prob. 19QCh. 26 - Prob. 20QCh. 26 - Prob. 21QCh. 26 - Prob. 22QCh. 26 - Prob. 23QCh. 26 - Prob. 24QCh. 26 - Prob. 25QCh. 26 - Prob. 26QCh. 26 - Prob. 27QCh. 26 - Prob. 28QCh. 26 - Prob. 29QCh. 26 - Prob. 30QCh. 26 - Prob. 31QCh. 26 - Prob. 32QCh. 26 - Prob. 33QCh. 26 - Prob. 34QCh. 26 - Prob. 35QCh. 26 - Prob. 36QCh. 26 - Prob. 37QCh. 26 - Prob. 38QCh. 26 - Prob. 39QCh. 26 - Prob. 40QCh. 26 - Prob. 41QCh. 26 - Prob. 42QCh. 26 - Prob. 43QCh. 26 - Prob. 44QCh. 26 - Prob. 45QCh. 26 - Prob. 46QCh. 26 - Prob. 47Q
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- 1) How many times as strong is the Coulomb repulsion between two electrons than the gravitational attraction between the same two electrons? (The distance does not matter.) 2) There is an equilateral triangle with sides 2 meters in length. At one of the points is a 1 microcoulomb charge, at the second point there is a 2 microcoulomb charge, and at the third point there is a 3 microcoulomb charge. What is the magnitude of the force on the 2 microcoulomb charge? 3) Two small objects 3 meters from each other have the same negative charge. The repulsive force between them is 3 N. How many electrons worth of excess negative charge does each object have?arrow_forwardThe protons in a nucleus are approximately 2 ✕ 10−15 m apart. Consider the case where the protons are a distance d = 1.85 ✕ 10−15 m apart. Calculate the magnitude of the electric force (in N) between two protons at this distance.arrow_forwardHelpful information: (1) An alpha particle is a helium nucleus, (2) e = 1.6 × 10-¹⁹ C, (3) k = 9.0 × 10⁹ Nm² C-2, (4) 1nm = 1 × 10-⁹ m 1-An alpha particle lies on the x-axis, a distance of 1.0 nanometer from a proton (in this set-up, the alpha particle is at the origin while the proton is in the positive direction). Which of the following choices below represents the magnitude of the electric force on the alpha particle? (a) 2.3 × 10-10 N (b) 4.6 × 10-¹0 N (c) 2.3 × 10-19 N (d) 4.6 × 10-19 N eplacing the voltage sou the following inst choices below time != 1.00 37 instantaneous currentarrow_forward
- The force that acts between the electron and nucleus of an atom is the same force that keeps the planets in their orbits. True O Falsearrow_forwardConsider (Figure 1) showing a proton approaching a helium-3 nucleus that has two protons and one neutron. Figure 1 of 1 Proton Helium-3 nucleus Initial 9= +2e Зт 9 = +e m To = 0 v = 0 Final (the proton is at rest)arrow_forwardWhat is the force between two protons with a charge of 1.6 × 10^-19 C if they are 5 × 10^-15 m apart from one another in the nucleus?arrow_forward
- Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their charges are equal, what is the ratio of the proton's mass to the electron's? (The charge-to-mass ratios for electrons and protons are −1.7588×1011 C/kg and 9.5788e7 C/kg , respectively. Note that since the charge-to-mass ratios are given to five-digit accuracy, your answer may differ from the accepted ratio. Round your answer to at least five significant figures.) Mp/Me =arrow_forward7) This time you put a nucleus with 11 protons on the x-axis at x = 6.1 Angstroms. There will be a place on the x-axis where the total electric field is zero. At what value of x does this occur? 1.68 Angstroms 0.84 Angstroms -2.63 Angstroms -2.10 Angstromsarrow_forwardA proton, which is the nucleus of a hydrogen atom, can be modeled as a sphere with a diameter of 2.4 fm and a mass of 1.67 10-27 kg. Determine the density of the proton (kg/m^3)arrow_forward
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