What evidence is there that Earth has been struck by large meteorites?
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There are numerous craters still visible today, such as the Barringer Crater in Arizona and the Manicouagan reservoir in Canada. Both clearly display the traits of a large impact, including a central peak in the case of the Canadian crater. There is also evidence of a large impact in the Yucatan that may have caused the extinction of the dinosaurs.
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Explain why it is a common misconception that Galileo faced the Inquisition for his belief in a heliocentric Universe
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What is the mass density of argon gas at pressure 1.00 × 105 N/m2 and at temperature 300 K? The mean atomic mass of argon is 39.948 g/mol and the ideal gas constant is R = 8.314 J/mol ? K =
A) 1.40 kg/m3 B) 1.00 kg/m3 C) 1.20 kg/m3 D) 1.60 kg/m3 E) 1.80 kg/m3
What are the similarities and differences between the Kelvin and Fahrenheit temperature scales? Identify the freezing point of water on both scales
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A stonecutter's chisel has an edge area of 0.7 cm2 . If the chisel is struck with a force of 42 N, what is the pressure exerted on the stone?
a. 600 N/m2 b. 30 000 N/m2 c. 300 000 N/m2 d. 600 000 N/m2 e. 6 000 N/m2