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Avatar of 7thSense

I'll just comment on this foru... (snores)

Avatar of funandniceisme

If it has a quart capacity, how many pennies can you put into a empty piggy bank?

 

Send me a message and win a fabulous prize!

Avatar of Davey_Johnson
funandniceisme wrote:

If it has a quart capacity, how many pennies can you put into a empty piggy bank?

 

Send me a message and win a fabulous prize!


Easy question.

Penny Diameter = 0.75 inches

Penny Thickness = 0.061 inches

Penny Area = pi x (d/2)^2 = 0.4418 square inches

Penny Volume = (0.4418 square inches) x (0.061 inches) = 0.0270 cubic inches

1 US Quart = 57.75 cubic inches (conversion factor)

(57.75 cubic inches)/(0.0270 cubic inches per penny) = 2142.94 pennys

 

or just 2142 pennies since we can't have a partial penny.

Avatar of winerkleiner

Pssh, easy question, next.

So what's heavier a pound of pennies or a pound of space? 

Avatar of Davey_Johnson
winerkleiner wrote:

Pssh, easy question, next.

So what's heavier a pound of pennies or a pound of space? 


Are you referring to pound-mass or pound-force? There is a distinction in the English System (also why it is so dumb).

Avatar of winerkleiner

Ok since 1 pound mass = 0.45359237 kilograms 1 pound force ≡ 0.45359237 kg × 9.80665 m/s² (1 pound force) = (1 pound mass)(32.2 ft/s^2), it's your choice.

Avatar of Davey_Johnson
winerkleiner wrote:

Ok since 1 pound mass = 0.45359237 kilograms 1 pound force ≡ 0.45359237 kg × 9.80665 m/s² (1 pound force) = (1 pound mass)(32.2 ft/s^2), it's your choice.


 

But your original question is nonsensicle regardless of whether we assume lbm or lbf, because you cannot apply either pound-mass or pound-force to "space."

If anything, "space" involves the fundamental dimension of length and nothing more, e.g.,

Volume = {length x length x length}.

But "force" is made up of several fundamental dimensions, i.e.,

{Force} = {Mass x (Length/Time^2)}

Avatar of Joseph-S

Pet python.

Avatar of Davey_Johnson

AWWW...so cute! It is giving him a hug! @_@

Avatar of winerkleiner

Ah ok you win!

I will stick to counting and wishing upon the stars!

Avatar of The_Chess_Ninja

your math equations are getting confusing... :S

Avatar of funandniceisme
Teary_Oberon wrote:
funandniceisme wrote:

If it has a quart capacity, how many pennies can you put into a empty piggy bank?

 

Send me a message and win a fabulous prize!


Easy question.

Penny Diameter = 0.75 inches

Penny Thickness = 0.061 inches

Penny Area = pi x (d/2)^2 = 0.4418 square inches

Penny Volume = (0.4418 square inches) x (0.061 inches) = 0.0270 cubic inches

1 US Quart = 57.75 cubic inches (conversion factor)

(57.75 cubic inches)/(0.0270 cubic inches per penny) = 2142.94 pennys

 

or just 2142 pennies since we can't have a partial penny.


You are incorrect, Mr. Easy Question

Avatar of winerkleiner

I will stick to a dog as a pet, pythons eat kids.

Avatar of Davey_Johnson
funandniceisme wrote:
Teary_Oberon wrote:
funandniceisme wrote:

If it has a quart capacity, how many pennies can you put into a empty piggy bank?

 

Send me a message and win a fabulous prize!


Easy question.

Penny Diameter = 0.75 inches

Penny Thickness = 0.061 inches

Penny Area = pi x (d/2)^2 = 0.4418 square inches

Penny Volume = (0.4418 square inches) x (0.061 inches) = 0.0270 cubic inches

1 US Quart = 57.75 cubic inches (conversion factor)

(57.75 cubic inches)/(0.0270 cubic inches per penny) = 2142.94 pennys

 

or just 2142 pennies since we can't have a partial penny.


You are incorrect, Mr. Easy Question


LIES! ALL LIES! My math is perfect! >_<

Avatar of Davey_Johnson
Alan_Tudor wrote:

@ Teary_Oberon I agree with your calculations but I think you have forgot to add in one variable. The Quart container can be of unusual shape and due to the size of the penny not all usable space will be able to contain a penny. So there will be a certain amount of unfilled space within the container. I have no idea how to calculate that unfilled space. For sure the actual amount of penny's will be less then the calculated volume of the container.


Yes, I considered that; but unless we are given the exact shape of the container then it is impossible to determine. And even if we were given the shape of the container, it might take nothing less than a powerful 3D modeling program with collision detection (and about 10 hours of work), to figure it out.

But if you want to estimate, then we could always subtract a good sounding percentage from the volume, say 5% as a top end guess?

 

(57.75 cubic inches) x (0.95) = 54.86 cubic inches

(54.86 cubic inches) / (0.027 cubic inches per penny) = 2031 pennies

 

So the answer probably lies somewhere between 2031 pennies and the absolute maximum of 2142 pennies, and that is the closest we can come =/.

Avatar of winerkleiner

Grab 2031-2142 pennies and find out or argue about it all day.

Avatar of The_Chess_Ninja

how are you supposed to get 2031 pennies??

Avatar of winerkleiner

Since we are off the subject, I should be on the beach checking out the bikinis!

No need for pennies there, Smile

Avatar of funandniceisme
Teary_Oberon wrote:
Alan_Tudor wrote:

@ Teary_Oberon I agree with your calculations but I think you have forgot to add in one variable. The Quart container can be of unusual shape and due to the size of the penny not all usable space will be able to contain a penny. So there will be a certain amount of unfilled space within the container. I have no idea how to calculate that unfilled space. For sure the actual amount of penny's will be less then the calculated volume of the container.


Yes, I considered that; but unless we are given the exact shape of the container then it is impossible to determine. And even if we were given the shape of the container, it might take nothing less than a powerful 3D modeling program with collision detection (and about 10 hours of work), to figure it out.

But if you want to estimate, then we could always subtract a good sounding percentage from the volume, say 5% as a top end guess?

 

(57.75 cubic inches) x (0.95) = 54.86 cubic inches

(54.86 cubic inches) / (0.027 cubic inches per penny) = 2031 pennies

 

So the answer probably lies somewhere between 2031 pennies and the absolute maximum of 2142 pennies, and that is the closest we can come =/.


your getting warmer...

Hint below:

stop overthinking it

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