TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Tractor Talk Discussion Forum

Math question

Welcome Guest, Log in or Register

Author

Rod in Smiths F

10-08-2007 15:57:27

Report to Moderator

I cracked a bunch of walnuts from my first harvest. Curious as to what percentage of the nut was kernel, I bagged the shells in one shopping bag and the kernels in another, then suspended them on a balance consisting of a long piece of oak trim and a pivot point.

The bag with the shells hung 20" from the pivot. The bag with the kernels balanced at 50" from the pivot. All other things being equal, what is the ratio of kernel to hull in my strain of wild walnuts?

Thanks,

Rod Croskery
The Croskery Woodlot

[Log in to Reply] [No Email]

David, Surrey UK

10-09-2007 09:53:18

Report to Moderator

Re: Math question in reply to Lanse, 10-08-2007 15:57:27

Teachers pet said: (quoted from post at 00:49:25 10/09/07) That's not how it goes in school these days. here is a sample question;

You have one bag with 3 3/4 lbs. of walnuts

You have another bag with 2 2/3 lbs. of walnuts

Question; How many bags do you FEEL you have?

Question: How do you think the tree feels, having its nuts picked and taken away by the farmer? Write the words to a song you think the tree might sing. (Marks will not be deducted for incorrect spelling.)

third party image

David

[Log in to Reply] [No Email]

Jeff-oh

10-09-2007 08:27:09

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

By weight the kernels are 2.5 times more than the hauls.... 50/20 = 5/2 = 2.5/1.

[Log in to Reply] [No Email]

triplerange

10-09-2007 05:21:47

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

Are we supposed to neglect the friction of the pivot and assume the oak trim you are using does not deflect?

[Log in to Reply] [No Email]

Jeff-oh

10-09-2007 08:29:53

Report to Moderator

Re: Math question in reply to triplerange, 10-09-2007 05:21:47

Deflection in oak trim is negligible. Even a 1" deflection would only shorten the moment arm by .0025 inches.

[Log in to Reply] [No Email]

Pete in MD

10-08-2007 20:48:14

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

You asked "...what is the ratio of kernal to hull...".

The ratio is: 1 to 2.5

[Log in to Reply] [No Email]

TomH in PA

10-08-2007 19:25:42

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

Here's an expert on nuts:

Untitled URL Link

[Log in to Reply] [No Email]

Teachers pet.

10-08-2007 19:44:57

Report to Moderator

Re: Math question in reply to TomH in PA, 10-08-2007 19:25:42

Speaking of nuts, I'm sure you know that a peanut is not actually a nut at all. It is an indehiscent legume.

[Log in to Reply] [No Email]

Class clown

10-08-2007 20:05:48

Report to Moderator

Re: Math question in reply to Teachers pet., 10-08-2007 19:44:57

Well,
Those aren't indehiscent legumes.
They're more like indecent legumes.

[Log in to Reply] [No Email]

TyTX

10-08-2007 18:40:34

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

Simple answer:

The distance between shells and nutmeat is 70" and 20" are nutmeat while 50" are shells.

20/70 = nutmeat
50/70 = shells

2/7 = 28.57% nutmeat
5/7 = 71.43% shells

Roughly 1/3 of each unshelled nut is kernel(colonel).

The remainder must be enlisted persons.

[Log in to Reply] [No Email]

Jeff-oh

10-09-2007 08:39:34

Report to Moderator

Re: Math question in reply to TyTX, 10-08-2007 18:40:34

This is not how it works. The sum of the moments about the pivit is zero, else the rod would tip.

Thus. Weight of shells (WS)* 50in = Weight of meat (WM) * 20

Do some division: WM/WS= 50/20 = 2.5/1

Thus of the whole weight of the nut you can expect 71.4% to be meat and 28.5% shell.

[Log in to Reply] [No Email]

Lanse

10-08-2007 17:10:14

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

Dang!!! Do your own homework :-) no, thats NOT me.

[Log in to Reply] [No Email]

Too Far Gone

10-08-2007 16:45:09

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

Ive got it!You send me both bags and I will weigh them on this new-fangled invention called a scale.

[Log in to Reply] [No Email]

Aaron Ford

10-08-2007 18:25:56

Report to Moderator

Re: Math question in reply to Too Far Gone, 10-08-2007 16:45:09

I will offer the same service. 'Cept the percetage of nuts may go down slowly until there is none left. Figure the shells will be safe though... unless I can get them to go through my media blaster. And I will better any other offer by 10 percent....

28.57% Nut
71.43% Shell

Gold Mine=Hers
Shaft=Mine

Aaron

[Log in to Reply] [No Email]

nballen

10-08-2007 16:40:17

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

By my figures:
11.4 oz shell / lb nuts => 71% shell by weight
4.6 oz kernal / lb nuts => 28.5% kernal by weight

How I got there -

The shells were 20" from the pivot, the kernals were 50" from the pivot when the "system" balanced. Therefore, 20*S = 50*K. We don't know the total weight, so figure S + K = 1 lb.

This:
20*S - 50*K = 0
S = K-1

Combines to:
50*K -20*(1-K) = 0

And we get K = 2/7 = 28.5% kernal

Nathaniel

Somebody check my math, please!

[Log in to Reply] [No Email]

nballen

10-08-2007 16:41:22

Report to Moderator

Re: Math question in reply to nballen, 10-08-2007 16:40:17

Drat! Looks like I'm late to the game.

Nathaniel

[Log in to Reply] [No Email]

10-08-2007 16:37:27

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

Old elementary school problems for kids? Balance factor from pivot is 20/50 =1/2.5, shells weigh 2.5 times as much as nuts harvested, nuts need 2.5 times length to balance. Harvest % about 40% nuts- about the same % as on OT board?. ;-) RN.

[Log in to Reply] [No Email]

10-08-2007 16:41:14

Report to Moderator

Re: Math question in reply to RN, 10-08-2007 16:37:27

Oops! 28% about right. 1/3.5 x 28 = close to 100. Just waking up.

[Log in to Reply] [No Email]

suptscottyb

10-08-2007 16:12:41

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 15:57:27

Let me try this. Your working with 20" and 50". A common denomitor would be 10 so, your harvest is 2/5ths shells. Or from each pound of nut crop you get 9.4 oz. of fruit and 6.6 oz of waste. I could be all wrong here, what do you think?? Is it a 40 / 60 split ? 60% fruit?

[Log in to Reply] [No Email]

Rod in Smiths Falls, ON

10-08-2007 16:35:45

Report to Moderator

Re: Math question in reply to suptscottyb, 10-08-2007 16:12:41

28.5% kernel? 25% is average for black walnuts.

If the shells are x = 1, then the kernels are y = 2/5. So the kernels are 40 parts of a total of 140, or 28% and a bit.

[Log in to Reply] [No Email]

Teachers pet

10-08-2007 16:49:25

Report to Moderator

Re: Math question in reply to Rod in Smiths Falls, ON, 10-08-2007 16:35:45

That's not how it goes in school these days. here is a sample question;

You have one bag with 3 3/4 lbs. of walnuts

You have another bag with 2 2/3 lbs. of walnuts

Question; How many bags do you FEEL you have?

[Log in to Reply] [No Email]

in-too-deep

10-08-2007 19:57:44

Report to Moderator

Re: Math question in reply to Teachers pet, 10-08-2007 16:49:25

Excellent!!

[Log in to Reply] [No Email]

GeneMO

10-08-2007 18:22:01

Report to Moderator

Re: Math question in reply to Teachers pet, 10-08-2007 16:49:25

When you figure out you lost 50% or better in county, state, and federal taxes, fees, permits, licenses, surcharges, excises taxes, etc, then another 10% in shrinkage, dock, moisture, and foreign matter, then spent another 10% in trucking and packaging you might as well stay on the porch and drink another cold one.

Gene

[Log in to Reply] [No Email]

Davis In SC

10-08-2007 17:50:44

Report to Moderator

Re: Math question in reply to Teachers pet, 10-08-2007 16:49:25

Any answer is OK, as long as you share part of the Walnuts with someone that has no Walnuts... The nuts must be shelled first, though...

[Log in to Reply] [No Email]

suptscottyb

10-08-2007 19:18:13

Report to Moderator

Re: Math question in reply to Davis In SC, 10-08-2007 17:50:44

Don't let the govt. find out you got all those nuts - they will give them away until everybody has one.

[Log in to Reply] [No Email]

Davis In SC

10-08-2007 20:37:58

Report to Moderator

Re: Math question in reply to suptscottyb, 10-08-2007 19:18:13

Yep, Walnuts will be on the WIC list. along with all the other free food... Half of the folks at the supermarket are on WIC, foodstamps, or some other program...

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy