When four protons collide to form helium, what fraction of the original mass of the protons is converted into energy?
A) 0.7%
B) 100%
C) 0.05%
D) 4%
Correct Answer:
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Q202: A positron is a
A) hydrogen nucleus.
B) theory
Q203: Which of these physical products are NOT
Q204: When two protons and two neutrons combine
Q205: Hydrogen "burning" by fusion reactions occurs only
Q206: What happens to the positrons produced by
Q208: What is a positron?
A) chargeless and almost
Q209: What is the threshold temperature for the
Q210: Apart from the helium nuclei and energy
Q211: By how much does the mass of
Q212: Thermonuclear fusion reactions in the core of
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