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Q. A cosmic-ray proton in interstellar space has an energy of 16.5 MeV and executes a circular orbit having a radius equal to that of Venus's orbit around the Sun (1.08 x10^11 m). What is the magnetic field in that region of space?

Q. A certain protein molecule is hydrolyzed by an enzyme. How would you explain this statement in your own words to someone who is not familiar with chemical terminology.

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