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Figure 14-1 shows the decay of a Neptunium-238 over a period of 10 days. What is the half life of Neptunium-238?
answered
Jul 18, 2018
Chemistry
college
0
votes
38.1k
views
an astronaut drop a hammer and a egg while standing on the surface of the moon. which one will hit the surface first?
answered
Jun 2, 2018
Physics
high-school
1
vote
222k
views
A ramp is 17 feet long, rises 8 feet above the floor, and covers a horizontal distance of 15 feet, as shown in the figure. The ratio of to is equal to tan B. NextReset
answered
May 27, 2018
Mathematics
high-school
7
votes
233k
views
Select the factor pairs for the number 28. Choose ALL that apply. A 20 and 8 B 7 and 4 C 14 and 2 D 28 and 1
answered
Feb 7, 2018
Mathematics
middle-school
7
votes
46.9k
views
Which crop accounted for over half of the U.S. exports in the middle 1800s? A. corn B. rice C. cotton
answered
Feb 3, 2018
Geography
high-school
3
votes
210k
views
What is the value of x in the equation 3(2x + 4) = −6? a) −3 b)1 c)12 d)19
answered
May 27, 2017
Mathematics
high-school
1
vote
26.4k
views
Atom has 12 trucks he gave four trucks to and ed how many trucks does Adam have now
answered
Apr 1, 2017
Mathematics
middle-school
4
votes
79.8k
views
What molecules combine to form polysaccharides?
answered
Mar 17, 2017
Biology
high-school
1
vote
18.7k
views
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