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In one of the classic nuclear physics experiments at the beginning of the 20th century, alpha particles were accelerated toward stationary gold nuclei. Some alpha particles were reflected straight back due to the Coulomb interaction between the alpha particle and the nucleus. If the kinetic energy of a doubly charged alpha nucleus was 9.41 MeV when it was a large distance away from the nucleus, how close to the gold nucleus (79 protons) could it come before being reflected? Enter this distance in units of fm = 10-15 m. 1 MeV = 1.6*10-13 J Enter a number with one digit behind the decimal point.

In one of the classic nuclear physics experiments at the beginning of the 20th century, alpha particles were accelerated toward stationary gold nuclei. Some alpha particles were reflected straight back due to the Coulomb interaction between the alpha particle and the nucleus. If the kinetic energy of a doubly charged alpha nucleus was 9.41 MeV when it was a large distance away from the nucleus, how close to the gold nucleus (79 protons) could it come before being reflected? Enter this distance in units of fm = 10-15 m. 1 MeV = 1.6*10-13 J Enter a number with one digit behind the decimal point.

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In one of the classic nuclear physics experiments at the beginning of the 20th century, alpha particles were accelerated toward stationary gold nuclei. Some alpha particles were reflected straight back due to the Coulomb interaction between the alpha particle and the nucleus. If the kinetic energy of a doubly charged alpha nucleus was 9.41 MeV when it was a large distance away from the nucleus, how close to the gold nucleus (79 protons) could it come before being reflected? Enter this distance in units of fm = 10-15 m. 1 MeV = 1.6*10-13 J Enter a number with one digit behind the decimal point.
Transcribed Image Text:In one of the classic nuclear physics experiments at the beginning of the 20th century, alpha particles were accelerated toward stationary gold nuclei. Some alpha particles were reflected straight back due to the Coulomb interaction between the alpha particle and the nucleus. If the kinetic energy of a doubly charged alpha nucleus was 9.41 MeV when it was a large distance away from the nucleus, how close to the gold nucleus (79 protons) could it come before being reflected? Enter this distance in units of fm = 10-15 m. 1 MeV = 1.6*10-13 J Enter a number with one digit behind the decimal point.
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