anonymous
  • anonymous
*Heisenberg's Uncertainty Principle Question*
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
My Textbook defines the formula as \[\Delta x \times \Delta(mv) \ge \frac{ h }{ 4\pi }\] What does the \[\Delta (mv)\] stand for, and how can I find it given the uncertainty in velocity, the velocity, and the mass of the object.
chmvijay
  • chmvijay
mv is mass*velocity is nothing but momentum
chmvijay
  • chmvijay
if one is given other can be determined by plunging the known things in that equation

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anonymous
  • anonymous
I am not given delta x :(
chmvijay
  • chmvijay
then what all they gave for you tell me
anonymous
  • anonymous
Alright, I'll post my problem.
anonymous
  • anonymous
Use Heisenberg's Uncertainty Principle to calculate the uncertainty in the position of a 546 mg ball moving at a speed of 5.3 m/s if the speed is known to be correct within \[\pm 0.05\] m/s.
chmvijay
  • chmvijay
both mass and velocity aare given u have to find simply delta X , u know h is Planck a constant
anonymous
  • anonymous
yes, 6.626E-34 J-s
chmvijay
  • chmvijay
yup
anonymous
  • anonymous
how do i find delta (mv)?
chmvijay
  • chmvijay
here delta mean not exactly the difference ur thinking of its just uncertainty
anonymous
  • anonymous
How would I find the uncertainty of the momentum?
chmvijay
  • chmvijay
|dw:1377872574743:dw|
anonymous
  • anonymous
So, in this question, what would delta mv be?
chmvijay
  • chmvijay
delta P
anonymous
  • anonymous
Like numberwise :P
chmvijay
  • chmvijay
:D
anonymous
  • anonymous
I'm gonna draw out my work, can you tell if I am correct?
anonymous
  • anonymous
|dw:1377872854026:dw|
anonymous
  • anonymous
I know m and delta v, but not delta mv
chmvijay
  • chmvijay
LOL ur V is 5.3 m/s and M is 546 mg
anonymous
  • anonymous
i converted to kg becuz thats the units we use for momentum
anonymous
  • anonymous
that are*
anonymous
  • anonymous
but what would the delta mv be?
chmvijay
  • chmvijay
why u put delta v =0.05
anonymous
  • anonymous
since we are certain the velocity is within 0.05 m/s
chmvijay
  • chmvijay
|dw:1377873330208:dw|
anonymous
  • anonymous
How is delta mv 5.3x0.5?
abb0t
  • abb0t
\(\Delta\) means change, in chemistry usually it is with respect to time. This usually means the difference.

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