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Why does a golfball have dimples on its surface?
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What are the little dimples on the surface of nucleus?
The pores.
A golf ball has a diameter of 4.1cm and the surface has 150 dimples of radius 2mm Calculate the total surface area?
You didn't finish the question but I assume that you mean the surface area minus the area of the dimples. The surface area of a sphere is 4π*r^2 and since the diameter is 4.1 cm, the radius is half of that or 2.05 cm. Hence the surface area of a sphere of radius 2.05 = 4*π*(2.05)^2 =52.8101725 cm^2 ---------- Now for the dimples. They are circles taken out of the surface of the sphere and hence each has an area of π*r^2 and there are 150 of these. One cm is 10 mm (cm is hundredth, mm is thousandth) So the radius of the dimples is 0.2cm 150 * π * (0.2)^2 = 150 * π * (0.04) = 6πcm^2 = 18.8495556 cm^2 ---------- Now we subtract the area of the dimples from the area of the sphere: 52.8101725 cm^2 18.8495556 cm^2 ------------------------------- Subtract 33.9606165 cm^2 ANSWER: 33.9606165 cm^2 is the surface area of the golf ball minus the area of the dimples.
How do you find the surface area of a ball?
4pr2 p being pi r being the radius. Then I guess you'd need to take into account all the area added by the dimples. Not sure about getting an exact, but would be interested to know. Do the dimples add or subtract from the surface area? I would guess it adds.
How do dimples make the the Mentos react with the coke?
the dimply surface in the mentos cause a polar attraction between the water molecules
What are materials of the surface of Neptune?
no
How many divits on the average golf ball?
A "divot" is the grass torn from the surface by the impact of a club, typically a lofting iron. The term for the marks on a golf ball is "dimples." (see the related question below)
Golf pairs matchplay can your partner leave his ball on the putting surface and allow you to putt whilst off putting surface?
Yes, but obviously if it is in your way you can ask them to mark it.
A low or sunken surface feature?
A low or sunken surface feature is called a depression. It can be caused by various factors such as erosion, weathering, or tectonic activity. Depressions can range in size from small dimples to large basins.
What best describes the surface of a desk?
The surface of a desk is typically flat and smooth, providing a level and stable work area. It can vary in materials such as wood, metal, glass, or laminate, depending on the desk's design and purpose. It is commonly used for writing, computer work, or other activities that require a stable surface.
When will water infiltrate surface material?
no will infiltrate surface materials that are permeable and unsaturated
Why can astronomers see the surface of mars clearly not the surface of Venus?
Surface materialsbasaltic rock and altered materials
