Earth radius - Wikipedia
Geocentric radius The geocentric radius is the distance from the Earth's center to a point on the spheroid surface at geodetic latitude φ, given by the formula: $${\displaystyle R(\varphi )={\sqrt {\frac {(a^{2}\cos \varphi )^{2}+(b^{2}\sin \varphi )^{2}}{(a\cos \varphi )^{2}+(b\sin \varphi )^{2}}}},}$$ where a and b are, respectively, the equatorial radius and the polar r… See more
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- C = 2 x pi x rThe radius of the Earth can be calculated using the formula C = 2 x pi x r, where C is the circumference of the Earth and r is the radius12. Eratosthenes’ methods result in a formula that would look like this: 39,350 = 2 x 3.14 x r, or 6,267 kilometers1. The radius of the Earth is equal to 3959 miles or 6371 km3. Another formula that can be used to calculate the distance to the horizon is a = sqrt { (r + h)^2 - r^2}3.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Compute the radius of the Earth using the formula C (circumference) = 2 x pi x r (radius). Eratosthenes’ methods result in a formula that would look like this: 39,350 = 2 x 3.14 x r, or 6,267 kilometers.sciencing.com/radius-earth-5895686.htmlFor measuring the radius of the earth compute the circumference of the earth. The radius of the earth will be circumference = 2πrwww.toppr.com/guides/physics/astronomy/how-to-f…Input these numbers into the following equation: a = sqrt { (r + h)^2 - r^2} a = (r + h)2 − r2 where: a a — Distance to the horizon; h h — Eyesight level above mean sea level; and r r — Earth's radius, equal to 3959 miles or 6371 km. This equation can be derived using the Pythagorean theorem.www.omnicalculator.com/physics/earth-curvature
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How to Find the Radius of the Earth - Sciencing
WEBFeb 15, 2023 · Compute the radius of the Earth using the formula C (circumference) = 2 x pi x r (radius). Eratosthenes’ methods result in a formula that would look like this: 39,350 = 2 x 3.14 x r, or 6,267 kilometers.
Al-Biruni's Classic Experiment: How to Calculate the Radius of …
WEBDec 30, 2023 · Abū Rayḥān Al-Bīrūnī, a pioneering Muslim scientist, figured out a truly remarkable and ingenious method to calculate the radius of the earth (and subsequently …
How to Find the Radius of the Earth? | An Overview - Toppr
WEBFor measuring the radius of the earth compute the circumference of the earth. Do this by taking the example of Eratosthenes and find the distance and angle between two …
Earth Radius by Latitude (WGS 84) - Online calculators
WEBThis online calculator calculates Earth radius at given latitude using WGS 84 reference ellipsoid
56.2: Radius of the Earth - Physics LibreTexts
WEBThere is a useful formula that gives the radius of the Earth \(R\) at any latitude \(\phi\) : \[R(\phi)=\sqrt{\frac{\left(a^{2} \cos \phi\right)^{2}+\left(b^{2} \sin \phi\right)^{2}}{(a …
How can YOU calculate the radius of the Earth? - YouTube
Earth Radius by Latitude Calculator - Rechneronline
WEBCalculates radius and diameter of the Earth for a given latitude. The radius of the earth is the distance from the center to the edge. The diameter is the distance from edge to …
Calculating the Size of Earth | Brilliant Math & Science …
WEBIn the diagram above, \( \angle A\) is the angle that the sun’s rays arrived to Earth at Alexandria on noon of the solstice. \( \angle B\) represents the angle subtended at the Earth’s center by the arc representing the …
What is the radius of the earth equation? - Physics …
WEBMay 12, 2023 · What are the formula in calculating the earth? The circumference of the Earth can be calculated using the formula, Circumference = 2 πR or π D, where R is the radius of Earth and D is …
5.4: Measuring the Earth with Eratosthenes - Physics …
WEBOne of the ways to comprehend the thinking of Eratosthenes is to draw the Earth and Sun, showing the angles between the Earth’s core and the lines representing the rays of the Sun. See if you can understand …
wgs84 - How do you compute the earth's radius at a given …
WEBThe trick is to convert from the t-parameterization to one in terms of f, because in terms of t the radius R is easy to compute (via the Pythagorean theorem). Its square is the sum of …
WEBRadius of Earth: The actual radius of the earth is 6:378 106 meters. Use the formula below to determine your percent error (Don’t worry if it’s large, I’m not grading on accuracy …
Distances on Earth 2: The Haversine Formula - The Math Doctors
WEBMar 23, 2021 · In proving the formula, we will work with a sphere of radius 1. The distance we get should be multiplied by R, the radius of the earth. Let's start with a formula for the …
WEBThe formula for the radius of curvature at arbitrary azimuth points up that the fundamental mathematical quantity is the inverse of these radii, which are simply called curvatures.
Earth Fact Sheet - NSSDCA
WEBThe standard acceleration of gravity for Earth is defined (CODATA 2018) as 9.80665 m/s 2 (exact).
The Earth - Imagine the Universe!
WEBOct 22, 2020 · (C = 2πr) With this information, Eratosthenes inferred that the Earth's radius was 6366 km. Both of these values are very close to the accepted modern values for the …
Calculating the earth radius at latitude - Our Planet Today
WEBJan 12, 2023 · The Earth’s prime-vertical radius of curvature at the equator equals the equatorial radius, N = a. What is latitude formula? As we have just seen, the angle at X …
3.1: Orbital Mechanics - Geosciences LibreTexts
WEBKepler's Third law can be used to determine the orbital radius of the planet if the mass of the orbiting star is known (\(R^3 = T^2 - M_{star}/M_{sun} \), the radius is in AU and the …
Radius of a Sphere Calculator
WEBIf you approximate the Earth as an ideal sphere (it is, in fact, a geoid) and you know the volume, you can calculate its radius. The numbers will be big, though! The volume V of …
13.5: Satellite Orbits and Energy - Physics LibreTexts
WEBSince the ISS orbits 4.00 x 10 2 km above Earth’s surface, the radius at which it orbits is R E + 4.00 x 10 2 km. We use Equations \ref{13.7} and \ref{13.8} to find the orbital speed …
How Eratosthenes calculated the Earth's circumference
WEBDec 27, 2017 · How an ancient Greek mathematician calculated the Earth's circumference. In the mid-20th century, we began launching satellites into space that would help us …
What is the formula of Earth? - Physics Network
WEBMay 21, 2023 · The formula for calculating the circumference of a sphere is 2 x pi x radius. So, the radius of the Earth is 6371 km. Plug that into the formula, and you get 2 x 3.1415 …
