Question 1.B.27


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Charlotte Adams 2D
Posts: 79
Joined: Wed Sep 30, 2020 9:46 pm

Question 1.B.27

Postby Charlotte Adams 2D » Tue Oct 27, 2020 11:46 am

What would be ΔV for this problem?

1B.27 A bowling ball of mass 8.00 kg is rolled down a bowling alley lane at 5.00 ± 5.0 m ⋅ s − 1 . What is the minimum uncertainty in its position?

Thanks!

Trevor_Ramsey_2J
Posts: 41
Joined: Wed Sep 30, 2020 9:58 pm

Re: Question 1.B.27

Postby Trevor_Ramsey_2J » Tue Oct 27, 2020 12:14 pm

Hi,

I haven't attempted this problem just yet, but based on what is given the change or uncertainty in velocity is 10 m/s. Then I would plug this into p = m (mass which is given, but make sure its in proper units) x v (which is 10 m/s). Then use this answer and plug into Heisenberg's Indeterminacy Equation to get the uncertainty in position. If someone else could confirm this that would be great!

marlene 2a
Posts: 40
Joined: Wed Sep 30, 2020 9:53 pm

Re: Question 1.B.27

Postby marlene 2a » Tue Oct 27, 2020 12:21 pm

Trevor was correct! The uncertainty in velocity is 10m/s because of the +- 5.0 and there is also a correction in the answer for this problem so I would check your answer on the chem website under the link titled solution manual errors, https://lavelle.chem.ucla.edu/wp-conten ... rs_7Ed.pdf
Hope that helps :)

Charlotte Adams 2D
Posts: 79
Joined: Wed Sep 30, 2020 9:46 pm

Re: Question 1.B.27

Postby Charlotte Adams 2D » Tue Oct 27, 2020 8:09 pm

marlene 2a wrote:Trevor was correct! The uncertainty in velocity is 10m/s because of the +- 5.0 and there is also a correction in the answer for this problem so I would check your answer on the chem website under the link titled solution manual errors, https://lavelle.chem.ucla.edu/wp-conten ... rs_7Ed.pdf
Hope that helps :)

that's so useful because I thought I was doing it right but the appendix showed a different answer and used a different delta V


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