What is the difference in equatorial circumference of the earth and the equatorial radius of the earth?
90686
I´m guessing you want to know the difference in meaning, since you already have the values.\n\nThe radius is the distance measured from the center to the edge of a circle. Imagin Earth as an orange cut in half and put back together. The cut line would be the Equator. Now open the orange and face the inside of the orange and you´ll see a white circle. The distance from the center of the orange to the edge (or white stuff) is the radius.\nThe circumference (or perimeter) is the length of one full lap around that circle.
419674
The Earth is approximately 25,000 miles in diameter at the equator, and it spins once in about 24 hours.  So, at the equator, the Earth is spinning about 1000 miles per hour.  However, if you live in the US, the Earth is moving much slower-about 70% the speed depending on your exact latitude-and slower as you go north or south from the equator.
763400
Circumference = 2*PI * r\n\nTherfore : Circumference / r = 2 * PI \n\nPI is nominally equal to 3.14
101953
There's a simple way to go about this. The answer is reasonably accurate too.\n\nNow, we know that the formula for the volume of a sphere is 4/3 times pi times the cube of earth's radius.\n\nGiven the value of pi as 3.14 and the earth's radius as 6400 km, and also assuming that the earth is a perfect sphere, we get the volume as 1.09806622 * 10^12 cubic kilometers.
1085566
The earth's approx circumference at equator is 24,800 miles.  It takes about one day for it to spin around once.  So, at the equator one would be zipping right along at approx 1,000mph.  It gets slower the further north or south of the equator you go since the "circle" of latitudes gets smaller.  So, do we move fast? We do, but since we are part of the gravity well created by the earth, its spin is our frame of reference and relative to us we are not accelerating out of it.  Gravity and accelerated motion are covariant (thanks to Einstein) and an internal observer cannot tell one from the other.  Just like going along in a car.  If the car could travel extremely smoothly enough and you could not see any external input--like out the windows, unless it changed direction or speed i.e. its velocity by undergoing acceleration, you would never know you were moving. Think about it you can only really tell you're moving along by the road vibrations in the vehicle and by seeing things going by outside the windows.  You only feel "moved" if it turns or speeds up/brakes.
41743
It's "circumference", and it's the boundry of a circular area, and actually, it's not that hard. \n\nThe circumference is the length of the outside boundry of a circle expressed as 2*pi*r ("pi" = the pi constant, sometimes abreviated as 3.14 and "r" is the radius or half of the distance across the circle. You can also do simply ). It's the length you'd get if you were to wrap a string around a balloon and measure it.
752294
The event horizon of a Black Hole is spherical.\n\nThe circumference is 2 pi times the radius, where the radius here means something rather different than "the distance to the center", since space is so warped.\n\nThe radius is proportional to the mass of the black hole (not the cube root of the mass, as you might at first think).  The radius is about 10 kilometers for the mass of the Sun, so 20 kilometers for twice the mass of the Sun, etc.
713948
No, the circumference is nearer 24,900 miles at the equator, if by planet you mean Mother Earth.
829930
Between the extremes of  12,400 to 12,500, depending on which north south line you traveled (the contour of the earth would create different distances).  The actual circumference of the earth through the poles has been calculated at 24,859.92 miles (less than the equatorial circumference.)
483770
Kenneth R. Lang's "Astrophysical Data: Planets and Stars" gives the polar radius as 6356.755 km = 39,940.7 km circumfrence and the equatorial radius as 6378.140 km = 40,075.0 km circumfrence and using the mean radius of 6371.0 km gives a polar circumfrence of 40,0030.2 km.  Take your pick.  Whatever Eratosthenese used as a standard, it was his methodology that was the thing that made him memorable.  When the French first established the length of the meter and hence the kilometer, they were off in their estimate of the length of a meridian too.
324486
Add v2/R.\nv=speed of rotation at the suface of the earth.\n(it depends on the geographic altitude fi)\nR = radius of the earth.
869293
I expect the answer is surface.\n\nA sphere has circumference, too.  But the thing is that a circle encloses a two-dimensional space, and the circumference is the boundary of that space.  Well, a sphere encloses a three-dimensional space, and the thing that encloses that space is the surface,  or surface area if you're thinking in terms of measure.
165284
What is the radious or diameter?
714881
First, you take a REALLY BIG tape measure and measure around the whole earth at the equator.  That gives you the circumference of the two dimensional circle defined by the equator.  Divide that number by pi.  Then divide the resulting quotient by 2.  Now you have the radius.\n\nIf you don't have a tape measure that big, and your mom won't give you the recipe for pi, you can try a different method.  Check out this method to get the circumference:  http://staff.imsa.edu/science/astro/astrometry/ground1.html\n\nThe Greek had of the library of Alexandria did it more than two thousand years ago.  All you have to do it get to Egypt at noon on the 21st of June for two years in a row.  And you have to find two wells.  \n\nOnce you have the curcumference, you can use my recipe for pi.  (3.160484) Once again, divide the circumference of the earth by pi, and then by 2.\n\nHope this helps.
25872
The distance around the Earth, also known as its "circumference", is 24,906 miles = 1,578,044,159.9999997 inches.
1091352
The radius of the Earth is approximately 6,350km.\n\nFirst, convert your latitude and longitude values from degrees into radians. This is done by dividing by 360 and then multiplying by 2pi. \n\nIf the latitude was south, make it negative. \nIf the longitude was west, make it negative. \n\nSupposing you flatten out the Earth's surface for your X-Y plane:\n\nXcoordinate (in km) = longitude(in radians) * 6350\nYcoordinate (in km) = latitude(in radians) * 6350
674138
Very similar to Earth's size.