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amid [387]
3 years ago
13

your friends says the helium in your birthday helium comes from radioactive decays. What is your response?

Physics
1 answer:
Nikitich [7]3 years ago
7 0
Helium is a non-toxic gas.
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5 minute deadline<br><br><br> List 2 academic and Scientific applications of radiation
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Genrish500 [490]

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Which equation is most likely used to determine the acceleration from a velocity vs:time graph?
tresset_1 [31]
Acceleration, a =  (v - u)/t

where v is the final velocity, u is the initial velocity, and t is the time.

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7 0
3 years ago
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How to solve arctan[tan(7pi /4)] ...?
Svet_ta [14]
Well, 
arctan is a bijection from R into (-pi/2 , pi/2)*and 
pi is a period of tangent function: 
so 
as we have : tan(7pi/4) = tan(pi - pi/4) = - tan(pi/4) 
we finally get : 

<span>arctan(tan(7pi/4)) = artan(tan(- pi/4)) = - pi/4 
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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It takes Serina 0.68 hours to drive to school. Her route is 34 km long. What is Serina's average speed on her drive to school?
shusha [124]

Speed = distance / time

Speed = 34 km / 0.68 hrs

Speed = 50 km/hr

3 0
3 years ago
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