Physics, 21.08.2019 19:20 damientran
Acertain atom has atomic number z = 25 and atomic mass number a = 52. a. what is the approximate radius of the nucleus of this atom? rnucleus = m b. what is the magnitude of the electrostatic force of repulsion between two protons on opposite sides of the diameter of the nucleus. f= n
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Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths
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Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system
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Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
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Acertain atom has atomic number z = 25 and atomic mass number a = 52. a. what is the approximate rad...
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