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You are using a Co source labeled as having the activity of 3.7 x 1010 counts/second in 1945. What is this source's current activity? (The half-lfe of 0Co is 5.271 years.)
asked
Feb 28, 2020
Physics
college
1
answer
5
votes
32.3k
views
How does the use of chapters develop the plot in "How a Cat Played Robinson Crusoe"? A. To show different scenes in the story and better show consequences of a character's choices and actions. B. To create
asked
Dec 10, 2019
English
college
2
answers
0
votes
61.9k
views
What is the effect on muscle atp and creatine phosphate (crp) when an athlete performs very-high-intensity exercise for a very short period of time (e.g., 10 seconds)?
asked
May 4, 2019
Biology
high-school
1
answer
3
votes
50.8k
views
Multiply. −3y(5y^3+11y^2−y+8) Express the answer in standard form. Enter your answer in the box.
asked
Apr 6, 2019
Mathematics
high-school
1
answer
3
votes
70.9k
views
Sunrise the 6:13 AM S sunset is at 7:16 PM how many hours and minutes of sunlight did we get
asked
Feb 3, 2019
Mathematics
college
1
answer
4
votes
44.9k
views
Fill in the blanks with the English meaning for each word
asked
Jan 4, 2019
Spanish
college
1
answer
0
votes
116k
views
For the function ƒ(x) = 3x2 – 7, find the value of ƒ(x) when x = 3.
asked
Oct 13, 2018
Mathematics
college
1
answer
3
votes
110k
views
Every species participates in some way in which major category of interspecific interactions? a. mutualism b. commensalism c. competition d. amensalism e. consumer–resource
asked
Aug 20, 2018
Biology
high-school
1
answer
1
vote
27.0k
views
Which is a characteristic feature of the members of the group Tunicata?
asked
Nov 24, 2017
Biology
high-school
1
answer
4
votes
76.6k
views
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