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Linked an image of this VHL
answered
Feb 26, 2020
French
middle-school
0
votes
180k
views
Cobalt-60 can be used by scientists for the purpose of radioactive dating. Cobalt-60 has a half-life of 5,272 years. A fossilized rock originally contained 25 grams of Co-60. When tested, the rock only
answered
Feb 18, 2020
Chemistry
middle-school
3
votes
227k
views
Boyles law for gases is:
answered
Sep 8, 2019
Chemistry
middle-school
2
votes
115k
views
A-4 over 5 = 12 6+z over 10 = -2 a+4 over 3 = 12 x-14 over -5 = 12
answered
Mar 23, 2019
Mathematics
middle-school
2
votes
185k
views
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