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diameter of penny is 19mm
radius is 9.5mm
area= pi (3.142)(9.5mm)squared= 90.25x3.142=283.565 sq mm
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What is the area of a penny?
the area of a penny is 2.8338cm2
What is the surfqace area of a cylinder?
It is the surface area of the two ends plus the surface area of the curved surface. Surface area of each end is pir2 Surface area of the curved surface is 2pirh Total surface area = 2pir2 + 2pirh
How can you obtain a cell's ratio of surface area to volume?
To obtain the ratio of surface area to volume, divide the surface area by the volume.
Why sphere has minimum surface area for given volume?
The same volume of an object, The simplest regular tetrahedron polyhedron, calculate the surface area. The surface area is pentahedral small surface area than the regular tetrahedron Regular hexahedron surface area than the surface area is small pentahedral . . . . If it is known is N-face surface area of ​​the body, there are N +1 is smaller the surface area of ​​the surface When N tends to infinity for a long time, Serve the sphere surface. ------mecose
What is the mathematical name for surface area?
it is still surface area
What is the surface area of a penny in mm?
British penny: 324 mm^2 American penny: 285 mm^2
What force causes a leaf to fall more slowly than a penny?
We know that air resistance (or atmospheric drag) is what causes a leaf to fall more slowly than a penny. A large leaf that weighs a much as a penny has a much greater surface area than the penny, and all this surface area means that the leaf has more drag. Though the leaf and penny will be accelerated by the same amount of force (because they have the same mass), the leaf will present all that surface area to the air, and this will set up a condition of high drag.
What would be the best way to build a penny boat?
try to cover as much surface area as possible.
What is the area of a penny?
the area of a penny is 2.8338cm2
Why does water bubble up on a penny?
Water molecules have a high surface tension, causing them to bead up on the surface of a penny due to its hydrophobic nature. As more water is added, the surface tension is overcome, leading to the formation of bubbles on the penny as the water tries to minimize its contact area with the metal.
How surface tension behaves?
for example, if drops of water are placed on the top of a penny, the surface tension is going to hold the drops on top of the penny. when the penny can hold no more, it will all overflow. make sense?
How do you make a penny float?
One way to make a penny float is by using the surface tension of water. Carefully place the penny on the surface of water in a bowl or cup, making sure it is placed flat. The surface tension of the water will allow the penny to stay afloat.
Why does water stay on a penny?
Water stays on a penny due to its high surface tension. This property of water causes it to form droplets on non-absorbent surfaces like the smooth surface of a penny, instead of spreading out.
What keeps water on a penny?
The surface tension of water keeps it on a penny. Surface tension is the result of intermolecular forces between water molecules that create a "skin" on the water's surface, allowing small objects like a penny to float.
What is the surfqace area of a cylinder?
It is the surface area of the two ends plus the surface area of the curved surface. Surface area of each end is pir2 Surface area of the curved surface is 2pirh Total surface area = 2pir2 + 2pirh
What is the surface area is the sum of the areas of all the surfaces of a three dimensional object called?
The total surface area! The total surface area! The total surface area! The total surface area!
Does water temperature affect surface tension on a penny?
Yes, water temperature can affect surface tension on a penny. As water temperature increases, surface tension generally decreases. This means that with higher water temperature, the water is less likely to bead up and more likely to spread out on the penny, reducing the surface tension.
