The Alpha Particles from a Naturally Radioactive Decay Have a Kinetic

question 60

Multiple Choice

The alpha particles from a naturally radioactive decay have a kinetic energy of 4.25 MeV. How close does an alpha particle come within a gold nucleus if the particle is heading directly toward the nucleus? Give your answer in terms of number of radii of the gold atom, r = 7.0 fm.

• A) 2
• B) 8
• C) 12
• D) 15
• E) 19

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Heavy-duty vehicles designed primarily for off-road use in agriculture and construction to pull or power various equipment.

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The amount of space between two points, which can be measured in various units such as kilometers, miles, meters, or feet, important for logistics and planning.

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