PHY122 Ch 16 Homework

PHY122 Ch 16 Homework - Sarah Jordan 2010 Hw 1 Lab B...

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Sarah Jordan February 26, 2010 Hw # 1 PHY122 Lab B Chapter 16 RQ # 2, 4, 9, 12 P # 1, 5, 7 2. What produced the iron and heavier elements like gold and silver in Earth’s core and crust? Most of iron was formed by generations and generations of stars; original particles were ‘cooked’ together to form the heavier elements such as carbon, nitrogen, oxygen, and iron. Iron on Earth was produced by carbon fusion in type Ia supernova explosions and the decay of radioactive atoms in the expanding matter ejected by type II supernova. Atoms heavier than iron (gold, silver, etc.) are created by rapid nuclear reactions that can occur only during supernova explosions. 4. According to the solar nebula theory, why is the sun’s equator nearly in the plane of Earth’s orbit? The solar nebular theory supposes that planets form in the rotating disks of gas and dust around young stars. Since the planets formed in the disk all the planets orbit the sun on almost the same plane, while the sun formed at the center with the same rotation as the
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This note was uploaded on 12/11/2011 for the course PHY 121 taught by Professor Weinstein during the Fall '08 term at SUNY Buffalo.

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PHY122 Ch 16 Homework - Sarah Jordan 2010 Hw 1 Lab B...

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