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Answers by Sefiks

Answers by Sefiks
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A sample of a radioactive isotope had an initial mass of 700 mg in the year 1991 and decays exponentially over time. A measurement in the year 1996 found that the sample's mass had decayed to 210 mg. What
answered Oct 1, 2022
5 votes
158k views
Which hypothesis is based on this research question
answered Jul 2, 2022
13 votes
120k views
I don’t get this pls helppppppp!!!!!!!!!!!!
answered Jul 1, 2022
6 votes
210k views
Magnetic fields all have the same or equal strength . true or false ?
answered Jun 7, 2022
3 votes
184k views
PLEASE HELP ME WITH THIS MATH PROBLEM
answered Apr 4, 2022
6 votes
225k views
How many elements have been found so far? A. 63 B. 90 C. 103 D. 118
answered Dec 16, 2021
7 votes
211k views
I always get these wrong Help
answered Nov 30, 2021
5 votes
53.6k views
What role did trappers and trades play in opening up the west
answered Oct 22, 2021
0 votes
40.4k views
How many Moles are in 15 liters of Hydrogen Gas?
answered Oct 15, 2021
7 votes
93.8k views
An oblique triangle has at least _____ right angle(s).
answered Oct 15, 2021
6 votes
94.3k views
The isotope 238U, which starts one of the natural radioactive series, decays first by alpha decay followed by two negative beta decays. At this point, what is the resulting isotope
answered Oct 11, 2021
0 votes
195k views
The tides of the ocean result from the gravitational pull on the Earth by the Sun and _______ . A. the atmosphere B. Venus C. Mars D. the Moon
answered Jul 1, 2021
2 votes
80.7k views
A gas in a piston–cylinder assembly undergoes a compression process for which the relation between pressure and volume is given by pVn 5 constant. The initial volume is 0.1 m3, the final volume is 0.04
answered Jun 10, 2021
2 votes
183k views
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answered Apr 18, 2021
6 votes
182k views
Select the correct answer. Simplify the following expression. 5^-5/2 x 5^9/2 A.) 625 B.) 5 C.) 1/25 D.) 25
answered Apr 16, 2021
2 votes
131k views
The rectangle has a height of 3 and a width of 3x^2+4 what’s is the area
answered Apr 13, 2021
3 votes
88.7k views
50 points if you can answer asap! :) The box plots below show attendance at a local movie theater and high school basketball games: Which of the following best describes how to measure the spread of the
answered Apr 10, 2021
2 votes
160k views
Our economic system in the United States is a "Mixed System" meaning that we are a free market but we also have lots of government involvement. True Or false
answered Jan 28, 2021
5 votes
204k views
Plz help me with this
answered Sep 17, 2020
3 votes
176k views
Read the excerpt from Kant’s “What is Enlightenment?” and answer the question. Those guardians who have kindly taken supervision upon themselves see to it that the overwhelming majority of mankind—among
answered Jul 21, 2020
4 votes
176k views
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