Physics for Scientists and Engineers with Modern Physics, Technology Update
9th Edition
ISBN: 9781305401969
Author: SERWAY, Raymond A.; Jewett, John W.
Publisher: Cengage Learning
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Question
Chapter 23, Problem 2OQ
To determine
The factor that prevents gravity from pulling you through the ground to the center of the earth.
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2. The nucleus in an iron atom has a radius of about 4.0×10-15 m and contains 26 protons.
(i) What is the magnitude of the repulsive electrostatic force between two of the protons that
are separated by 4.0×10-15 m? (b) What is the magnitude of the gravitational force between
those same two protons? [Given, e = +1.6x10-19 C and mp=1.67x1027 kg]
2.5
What prevents gravity from pulling you through the ground to the center of the Earth? Choose the best answer. (a) The density of matter is too great. (b) The positive nuclei of your body’s atoms repel the positive nuclei of the atoms of the ground. (c) The density of the ground is greater than the density of your body. (d) Atoms are bound together by chemical bonds. (e) Electrons on the ground’s surface and the surface of your feet repel one another.
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 False
Chapter 23 Solutions
Physics for Scientists and Engineers with Modern Physics, Technology Update
Ch. 23.1 - Three objects are brought close to each other, two...Ch. 23.2 - Three objects are brought close to one another,...Ch. 23.3 - Object A has a charge of +2 C, and object B has a...Ch. 23.4 - A test charge of +3 C is at a point P where an...Ch. 23.6 - Rank the magnitudes of the electric field at...Ch. 23 - Prob. 1OQCh. 23 - Prob. 2OQCh. 23 - Prob. 3OQCh. 23 - Prob. 4OQCh. 23 - Prob. 5OQ
Ch. 23 - Prob. 6OQCh. 23 - Prob. 7OQCh. 23 - Prob. 8OQCh. 23 - Prob. 9OQCh. 23 - Prob. 10OQCh. 23 - Prob. 11OQCh. 23 - Prob. 12OQCh. 23 - Prob. 13OQCh. 23 - Prob. 14OQCh. 23 - Prob. 15OQCh. 23 - Prob. 1CQCh. 23 - A charged comb often attracts small bits of dry...Ch. 23 - Prob. 3CQCh. 23 - Prob. 4CQCh. 23 - Prob. 5CQCh. 23 - Prob. 6CQCh. 23 - Prob. 7CQCh. 23 - Prob. 8CQCh. 23 - Prob. 9CQCh. 23 - Prob. 10CQCh. 23 - Prob. 11CQCh. 23 - Find to three significant digits the charge and...Ch. 23 - Prob. 2PCh. 23 - Prob. 3PCh. 23 - Prob. 4PCh. 23 - In a thundercloud, there may be electric charges...Ch. 23 - (a) Find the magnitude of the electric force...Ch. 23 - Prob. 7PCh. 23 - Nobel laureate Richard Feynman (19181088) once...Ch. 23 - A 7.50-nC point charge is located 1.80 m from a...Ch. 23 - Prob. 10PCh. 23 - Prob. 11PCh. 23 - Prob. 12PCh. 23 - Prob. 13PCh. 23 - Prob. 14PCh. 23 - Prob. 15PCh. 23 - Prob. 16PCh. 23 - Review. In the Bohr theory of the hydrogen atom,...Ch. 23 - Prob. 18PCh. 23 - Prob. 19PCh. 23 - Prob. 20PCh. 23 - Prob. 21PCh. 23 - Why is the following situation impossible? Two...Ch. 23 - Prob. 23PCh. 23 - Prob. 24PCh. 23 - Prob. 25PCh. 23 - Prob. 26PCh. 23 - Prob. 27PCh. 23 - Prob. 28PCh. 23 - Prob. 29PCh. 23 - Prob. 30PCh. 23 - Prob. 31PCh. 23 - Two charged particles are located on the x axis....Ch. 23 - Prob. 33PCh. 23 - Two 2.00-C point charges are located on the x...Ch. 23 - Prob. 35PCh. 23 - Consider the electric dipole shown in Figure...Ch. 23 - A rod 14.0 cm long is uniformly charged and has a...Ch. 23 - Prob. 38PCh. 23 - A uniformly charged ring of radius 10.0 cm has a...Ch. 23 - The electric field along the axis of a uniformly...Ch. 23 - Prob. 41PCh. 23 - Prob. 42PCh. 23 - A continuous line of charge lies along the x axis,...Ch. 23 - Prob. 44PCh. 23 - Prob. 45PCh. 23 - Prob. 46PCh. 23 - A negatively charged rod of finite length carries...Ch. 23 - Prob. 48PCh. 23 - Prob. 49PCh. 23 - Prob. 50PCh. 23 - A proton accelerates from rest in a uniform...Ch. 23 - Prob. 52PCh. 23 - Prob. 53PCh. 23 - Protons are projected with an initial speed vi =...Ch. 23 - Prob. 55PCh. 23 - Prob. 56PCh. 23 - A proton moves at 4.50 105 m/s in the horizontal...Ch. 23 - Prob. 58APCh. 23 - Consider an infinite number of identical...Ch. 23 - A particle with charge 3.00 nC is at the origin,...Ch. 23 - Prob. 61APCh. 23 - Prob. 62APCh. 23 - Prob. 63APCh. 23 - Prob. 64APCh. 23 - Prob. 65APCh. 23 - Prob. 66APCh. 23 - Prob. 67APCh. 23 - Prob. 68APCh. 23 - Prob. 69APCh. 23 - Two point charges qA = 12.0 C and qB = 45.0 C and...Ch. 23 - Prob. 71APCh. 23 - Prob. 72APCh. 23 - Two small spheres hang in equilibrium at the...Ch. 23 - Prob. 74APCh. 23 - Prob. 75APCh. 23 - Prob. 76APCh. 23 - Prob. 77APCh. 23 - Prob. 78APCh. 23 - Prob. 79APCh. 23 - Prob. 80APCh. 23 - Prob. 81APCh. 23 - Prob. 82APCh. 23 - Prob. 83APCh. 23 - Identical thin rods of length 2a carry equal...Ch. 23 - Prob. 85CPCh. 23 - Prob. 86CPCh. 23 - Prob. 87CPCh. 23 - Prob. 88CPCh. 23 - Prob. 89CPCh. 23 - Prob. 90CPCh. 23 - Two particles, each with charge 52.0 nC, are...
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- The 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_forwardA certain five cent coin contains 5.00 g of nickel. What fraction of the nickel atoms’ electrons, removed and placed 1.00 m above it, would support the weight of this coin? The atomic mass of nickel is 58.7, and each nickelarrow_forwardAssume that a room at sea level is filled with a gas of nitrogen molecules N2 in thermal equilibrium at -10.0 °C (negative ten degrees Celsius). There are 7 protons and 7 neutrons in the nucleus of a nitrogen atom N. You may take the masses of the proton and the neutron to be the same, and ignore the mass of the electrons. 1 atm=1.01x105 N/m² , h=1.05x10-34 J-s , mp=1.67x10-27 kg, kB = 1.38x10-23 J/K . a) What is the (particle) number density n according to the ideal gas law? b) Compare the number density n with the quantum concentration ng at the same temperature. c) Is the gas in the classical or quantum regime?arrow_forward
- A 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_forwardAssume the electron in a hydrogen atom is 53.0 pm from the nucleus of the atom, which consists of a single proton. (a) calculate the electrical force between the electron and the nucleus. (b) Calculate the gravitational force between the electron and the nucleus. (c) What is the ratio of the gravitational force to the electrical force?arrow_forwardAn Erbium-166 nucleus contains 68 protons. The atomic mass of a neutral Erbium-166 atom is 165.930u, where u = 931.5 MeV/c². In this question you may use that the mass of a proton is 938.27 MeV/c², the mass of a neutron is 939.57 MeV/e² and the mass of an electron is 0.511 MeV/c². i. Calculate the nuclear binding energy per nucleon, giving your answer in units of MeV. ii. Electrons with an energy of 0.5 GeV are scattered off the nucleus. Estimate the scattering angle of the first minimum in the resulting diffraction pattern. iii. Briefly comment on whether or not you expect this nucleus to be spherical, and what consequence this has for excited states of the nucleus in the collective model.arrow_forward
- A typical carbon nucleus contains 6 neutrons and 6 protons. The 6 protons are all positively charged and in very close proximity, with separations on the order of 10-15 meters, which should result in an enormous repulsive force. What prevents the nucleus from dismantling itself due to the repulsion of the electric force? a. The attractive nature of the strong nuclear force overpowers the electric force. b. The weak nuclear force barely offsets the electric force. c. Magnetic forces generated by the orbiting electrons create a stable minimum in which the nuclear charged particles reside. d. The attractive electric force of the surrounding electrons is equal in all directions and cancels out, leaving no net electric force.arrow_forwardConsider the element Hydrogen. In this atom, assume the electron travels with a speed of 6.8 105 m/s. What is the radius between the nucleus and the orbiting electron in m?arrow_forwardAn electron revolves around the nucleus of an atom in a circular orbit of radius 4.0Å with a speed of 6.0 x 10^6 ms-1. Calculate the linear kinetic energy.arrow_forward
- 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)arrow_forwardAn iron nail has a mass of 9.0g. What is the energy (in Joules) that would be required to break all the iron nuclei into their constituent protons and neutrons? Ignore the energy that binds the electrons to the nucleus and the energy that binds one atom to another in the structure of the metal. For simplicity, assume that all the iron nuclei are Fe (atomic mass = 55.934 939 u). 26arrow_forward10) Now you have a nucleus with 13 protons at x = 6.2 Angstroms on the x-axis. How much work would it take to bring in ANOTHER nucleus with 7 protons from 1 m away and place it at y = 8.0 Angstroms on the y-axis? 70.0 eV 116.7 eV -12.6 eV 129.3 eVarrow_forward
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