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Q12: If an atom emits two protons and
Q21: To a ground-based observer, what is the
Q28: Which of the following is an example
Q29: How did Ernest Rutherford use a simple
Q34: Describe the primary and secondary structures of
Q37: Where is the longest mountain range on
Q39: How did Michael Faraday get his start
Q39: Albert Einstein's Nobel Prize in 1921 was
Q42: Which of the following does not have
Q47: In which of the objects below would