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What does scientist believe led to the mass extinction at the end of the Paleozoic era? Explain
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An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?
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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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What does scientist believe led to the mass extinction at the end of the Paleozoic era? Explain...
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