## Practice Midterm Extra Practice #5

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

Jessica Wakefield 1H
Posts: 58
Joined: Thu Jul 27, 2017 3:00 am

### Practice Midterm Extra Practice #5

After boasting your excellent bowling skills with your custom made 4.32 kg ball, you demonstrate your fastest bowl, rolling the ball down the lane at 9.23 +/- 0.1 m/s. What is the minimum indeterminacy of its position. Can you blame the Heisenberg Uncertainty Principle when you have a gutterball?

I understand how to find the indeterminacy in position but I am unsure about how to answer the second part about the gutterball. How would you be able/ not be able to blame the uncertainty principle for a gutterball?

Cynthia Tsang
Posts: 52
Joined: Fri Sep 29, 2017 7:07 am
Been upvoted: 1 time

### Re: Practice Midterm Extra Practice #5

So you find that the indeterminacy of the position of the gutter ball is an extremely small number -- about 2.42 x 10^-34 m. This is less than a single millimeter, so you cannot blame the Heisenberg Principle for a gutter ball because the principle would only shift your bowling ball an extremely small amount.