Chemistry
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OpenStudy (anonymous):
If the average speed of a helium atom at a certain temperature is 1230. m/s, what is the speed in miles per hour? (1mi =1609m)
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OpenStudy (rushwr):
You just have to convert the units !
OpenStudy (anonymous):
I need help setting up the problem, please.
OpenStudy (rushwr):
okai !
The helium atom goes 1230m in 1 s right/
We have to find it in miles per hour !
OpenStudy (anonymous):
right
OpenStudy (rushwr):
\[speed = Distance / time \]
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OpenStudy (rushwr):
Now we have to convert the units
if 1 mile= 1609m
1230m would be equal to
1230/ 1609 miles right?
OpenStudy (anonymous):
yes
OpenStudy (rushwr):
So what do u get for miles >
OpenStudy (anonymous):
Okay. I think I got it. So (1230m/1s) x (3600s/1h) x (1mi/1609m) = 2.752 x 10^3 mi/h
OpenStudy (anonymous):
Is that right?
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OpenStudy (rushwr):
nop
OpenStudy (anonymous):
What did I do wrong then?
OpenStudy (rushwr):
U have to divide the distance by hours ! You have multiplied them !
OpenStudy (anonymous):
Oh. I did.
OpenStudy (anonymous):
I'm not really good at drawing it out on here. Sorry.
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OpenStudy (rushwr):
It's okai !
OpenStudy (anonymous):
Thanks for helping me out!
OpenStudy (anonymous):
The program took my answer.
OpenStudy (rushwr):
yeah it is 2.12 x 10^-4 around ! Just calculate and see i ddnt go thru it muchl.
OpenStudy (anonymous):
Alright. Thanks!
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OpenStudy (rushwr):
Anytym :)