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2007-09-09 17:38:04 · 6 answers · asked by lirael1019 1 in Science & Mathematics Mathematics

6 answers

Here's a much easier way of doing it. It's called water displacement.

Put some water in a graduateed cylinder. Note how much water is in there. Then drop the penny into it. Note how much the water rises. This is the penny's volume.

2007-09-09 17:58:06 · answer #1 · answered by Anonymous · 2 0

For an approximation, measure the diameter,d, and thickness, t, and use the calculation
V = πt(d/2)^2.

Pennies, however, are minted in bas-relief, so a more accurate way is to take a 100ml graduated cylinder and fill it to the 50 ml mark. Add pennies one-by-one until you reach an exact graduation. Divide the increase in level in ml by the number of pennies added.

2007-09-09 20:22:29 · answer #2 · answered by Helmut 7 · 0 1

Physics for Sciencetists and Engineers with Modern Physics. 5th Edition. Orland, Florida: Saunders College Publishing, 2000: 178. "A penny of mass 3.10 g rests on a small 20.0 g block supported by a spinning disk." 3.10 g
Lincoln Cent. 1728 Software Systems. 2000. "The number of pennies in the cup will have a mass of 100 grams. In case you are wondering, the number of pre-1982 pennies has a mass of 3.1 grams. (However, pennies made after 1982 is about 2.5 grams). 3.1 g
(pre 1982)

2.5 g
(post 1982)
Coin Specifications. U.S Mint. "Composition: Copper Plated Zinc, 2.5 %Cu, Balance Zn, Weight 2.500 g, Diameter 0.750 in. 19.05 mm, Thickness 1.55 mm" 2.5 g
I weighed it myself. year mass (g)
1956 3.1
1961 3.1
1971 3.1
1980 3.1
2001 2.5
3.1 g
(pre 1982)

2.5 g
(post 1982)

2007-09-09 17:49:20 · answer #3 · answered by Ravin 5 · 0 0

measure one oz. of water into a small graduated cylinder. drop the penny in. how ever much the water rises is the volume of the penny.

2007-09-09 17:56:35 · answer #4 · answered by Jenna 2 · 1 0

quantity = section x top element of a circle = pi x radius^2 as a result, via changing section interior the 1st equation with the definition interior the 2d equation the quantity of your penny is pi x radius x radius x top 3.14 x 9.53mm x 9.53mm x a million.55mm = 422mm^3 considering the fact that 1000mm = 1m, you need to divide your answer via a million/1000 thrice to transform your answer into cubic meters (m^3). All this implies is you need to head the decimal 3 places to the left for each branch, for a entire of 9 places to the left 0.000000422m^3 or 4.22x10^7 m^3 in case you comprehend a thank you to transform to medical notation

2016-11-14 20:11:18 · answer #5 · answered by Anonymous · 0 0

Measure the diameter and height of the penny.

Let d = diameter, h = height

The volume is just the volume of a cylinder:
V = (h)(π)(r)²

So
V = (h)(π)(d/2)²

2007-09-09 17:45:06 · answer #6 · answered by whitesox09 7 · 0 0

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