## Question 1.B.27

$\Delta p \Delta x\geq \frac{h}{4\pi }$

Posts: 79
Joined: Wed Sep 30, 2020 9:46 pm

### Question 1.B.27

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

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 $\Delta$ p = m (mass which is given, but make sure its in proper units) x $\Delta$ 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

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 :)

Posts: 79
Joined: Wed Sep 30, 2020 9:46 pm

### Re: Question 1.B.27

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