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Author Question: Two different nuclei emit alpha particles, the energy released in each of these decays being the ... (Read 73 times)

neverstopbelieb

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on: Jul 28, 2018
Two different nuclei emit alpha particles, the energy released in each of these decays being the same. Which of the following has the lowest resulting kinetic energy?
 a. The alpha particle from the lighter nucleus.
  b. The alpha particle from the heavier nucleus.
  c. The heavier daughter nucleus.
  d. The lighter daughter nucleus.

Question 2

Certain stars at the end of their lives are thought to collapse, combining their protons and electrons together to form a neutron star. Such a star could be thought of as a giant atomic nucleus. If a star of mass equal to M = 4.00  1030 kg collapsed into neutrons (mn = 1.67  10-27 kg), what would be the radius of such a star? (Hint: r = r0A1/3, where r0 = 1.20  10-15 m.)
 a. 12.7 km
  c. 16.1 km
  b. 25.4 km
  d. 18.5 km


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GCabra

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


neverstopbelieb

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Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

diana chang

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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