Assignment 3 Solutions - Forensic Science | PHY 341, Assignments of Physics

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Solution HW3for PHYS 341 (Test 1) 1 How do we know that there is Helium in the sun? Answer: Measure the optical spectrum of the sun and interpret the dark lines (Fraunhofer lines). They are produced by the atoms in the solar corona. 2 Can we determine the day if death of Socrates by C14 dating, when we find one of his bones? Answer: 'C- dating is an excellent tool to determine the epoch in which sample stopped absorbing 4C_ However the uncertainty is at least + 100 years. We know from historical event that Socrates died around 390 BC. 3 Draw the force two atoms encounter, when they approach each other. Explain the key properties; (at the distance 0, at the minimum and at very large distances). . bone Paha | dh achow |