Q: Why does a golfball have dimples on its surface?

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Surface area of a sphere (the golfball) = 4*pi*radius2 square cm

The density of golfball is less then density of water

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.

An odd number of dimples would render the ball asymmetrical.

there is many things... :bubble,moon,earth, golfball, smile face, doughnuts......

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a golfball!

They allow the ball to fly, and make it aerodynamic.

Surface area of a sphere (the golfball) = 4*pi*radius2 square cm

A golf that is non-circular sickle-shaped dimples looks like a moon but this golf ball is design for better performance.

The pores.

Another golfball!

The density of golfball is less then density of water

Dimples are placed on a golfball by a large machine called a Ball Stamper, made by American Industrial Equipment Corporation, which was first founded on February 22nd of 1842 by James Marshall Windham III. The first one could only place 2 of the 336 dimples on a ball in one second. It took almost 2 minutes to place all 336 dimples on one ball! The latest models can put all 336 dimples on the ball instantly, on up to 6000 balls at a time. That's over 2 million dimples at once!

Yes

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.

This would depend on whether the allele for dimples is dominant or recessive. If the allele for dimples is dominant and the no dimples allele is recessive then the phenotype of the individual would be dimpled. If the allele for no dimples is dominant and the allele for no dimples is recessive then the dimples will not be expressed. If these alleles are codominant then the dimples will be expressed but not as much as in an individual who has both alleles for dimples.

This would depend on whether the allele for dimples is dominant or recessive. If the allele for dimples is dominant and the no dimples allele is recessive then the phenotype of the individual would be dimpled. If the allele for no dimples is dominant and the allele for no dimples is recessive then the dimples will not be expressed. If these alleles are codominant then the dimples will be expressed but not as much as in an individual who has both alleles for dimples.