Homework Problem 1B.27


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Victoria Zheng--2F
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Joined: Fri Aug 09, 2019 12:17 am

Homework Problem 1B.27

Postby Victoria Zheng--2F » Thu Oct 17, 2019 5:28 pm

The question says that the bowling ball of mass 8.00kg is rolled down a bowling alley lane at 5.00+/- 5.0m/s. I don't know if the change in the velocity of the bowling ball is 10m/s or 5m/s?

AlyssaYeh_1B
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Joined: Sat Aug 17, 2019 12:16 am

Re: Homework Problem 1B.27

Postby AlyssaYeh_1B » Thu Oct 17, 2019 5:37 pm

When doing your calculation, the Δv you should use is 10m/s, which is your maximum uncertainty.

DesireBrown1J
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Joined: Wed Sep 18, 2019 12:18 am

Re: Homework Problem 1B.27

Postby DesireBrown1J » Thu Oct 17, 2019 10:31 pm

AlyssaYeh_1C wrote:When doing your calculation, the Δv you should use is 10m/s, which is your maximum uncertainty.


Why do we have to use the maximum uncertainty velocity in the Heisenberg Indeterminacy equation?

Jocelyn Thorp 1A
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Re: Homework Problem 1B.27

Postby Jocelyn Thorp 1A » Thu Oct 17, 2019 10:51 pm

DesireBrown3K wrote:
AlyssaYeh_1C wrote:When doing your calculation, the Δv you should use is 10m/s, which is your maximum uncertainty.


Why do we have to use the maximum uncertainty velocity in the Heisenberg Indeterminacy equation?


because the maximum uncertainty is the entire range that you are uncertain. when you say plus or minus five, there could be a difference of 10 between 10 values contained within that, thus your maximum uncertainty would be 10 (to account for being wrong by 5 in either direction).

Shrayes Raman
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Re: Homework Problem 1B.27

Postby Shrayes Raman » Fri Oct 18, 2019 12:04 am

The question says plus or minus 5 which gives a maximum indeterminacy of 10. Use 10 in your calculation.

Anne Tsai 1F
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Re: Homework Problem 1B.27

Postby Anne Tsai 1F » Fri Oct 18, 2019 3:46 pm

But the problem asks for the minimum indeterminancy, so why don't you use 5 m/s in your calculation?

Emil Velasco 1H
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Joined: Wed Nov 21, 2018 12:19 am

Re: Homework Problem 1B.27

Postby Emil Velasco 1H » Sat Oct 19, 2019 6:30 pm

We use 10 for delta V


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