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Author Question: What mass of 14C, with a half-life of 5730 y, do you need to provide a decay rate of The mass of 14C ... (Read 369 times)

rlane42

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on: Oct 11, 2019

Question 1

A radioactive source emits 2.4-MeV neutrons at the rate of 7100 neutrons per second. The number of atoms in the source is What is the activity of the source, in curies (Ci)? (1.00 Ci = 3.70 × 1010 Bq)
◦ 1900 nCi
◦ 710 nCi
◦ 19 nCi
◦ 71 nCi
◦ 190 nCi

Question 2

What mass of 14C, with a half-life of 5730 y, do you need to provide a decay rate of The mass of 14C is 14.00 u, and 1 u = 1.6605 × 10-27 kg.
◦ 1.70 × 10-12 kg
◦ 3.84 × 10-20 kg
◦ 8.68 × 10-13 kg
◦ 5.38 × 10-19 kg
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Marked as best answer by rlane42 on Oct 11, 2019

tsternbergh47

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Reply #1 on: Oct 11, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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rlane42

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Reply 2 on: Oct 11, 2019
Wow, this really help

kswal303

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Reply 3 on: Yesterday
Excellent

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