Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Fermi Problem:
How many paper clips in a jar with the following ?
The Jar: 6.5 litre capacity
Length and width of 1 paper clip: 2 x 0.5 inches
 one year ago
 one year ago
Fermi Problem: How many paper clips in a jar with the following ? The Jar: 6.5 litre capacity Length and width of 1 paper clip: 2 x 0.5 inches
 one year ago
 one year ago

This Question is Closed

radarBest ResponseYou've already chosen the best response.1
Since there is no dimension given for the paper clip thickness, there could be a whole lot, an infinite amount.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
^ has a point there.
 one year ago

radarBest ResponseYou've already chosen the best response.1
convert the 6.5 liter to cubic centimeters. convert the dimensions of the paper clips (when you have all 3) length, width, and depth) to centimeters. Convert to cubic centimeters and divide into the cubic centimeters of the jar. That would be one method, but in this case, I would borrow a whole bunch of paper clips and fill the jar, then count them.
 one year ago

radarBest ResponseYou've already chosen the best response.1
I don't know how to calculate the space used up by a paperclip. Maybe find its displacement in water...????
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
I know the Fermi Problem method is to make an 'order of magnitude estimate.' 6500cc's by (I'd estimate 1.25cc's per paper clip) I'd get around 5000, but given the margins of error (which are large), I'd put the orders of magnitude between 1,000 and 10,000
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
@radar, I don't think the exact volume of the paperclip would help since their negative space contributes as well (stacking problem). There is also the issue of unperfect (random) stacking from the assumed 'justpourabunchofpaperclipsinthere' method of filling the container.
 one year ago

radarBest ResponseYou've already chosen the best response.1
Oh, I was completely off base, as I wasn't even considering Fermi, is this the same Fermi that did work in quantum mechanics and in semiconductors?
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
^ Yeah, Richard Feynman talked about him a lot and spoke of this method.
 one year ago

radarBest ResponseYou've already chosen the best response.1
Yes I agree, the geography of a paper clip would preclude an orderly calculation.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
I think he used 'backoftheenvelope estimate' as a descriptor as well.
 one year ago

radarBest ResponseYou've already chosen the best response.1
Thanks, I learn a lot from this Open Study.
 one year ago

radarBest ResponseYou've already chosen the best response.1
Nice chatting with you CliffSedge.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
Same, Mr. radar. What do you think, @burhan101 ?
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
this is a really complex question, i have like a white board with stuff on it haha :$ still in the process of finding a reasonable way to approach this
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
The reasonable approach is to guess and not be too outlandish about it.
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.