what is the radius of the earth in meters

The radius of a parallel of latitude is given by 2a : the bone on the thumb side of the human forearm also : a corresponding part of vertebrates above fishes. [6] It is an idealized surface, and the Earth measurements used to calculate it have an uncertainty of 2m in both the equatorial and polar dimensions. It is the only planet in our solar system that sustains life and it is the planet that we can call our own. This section describes the common ways. Escape velocity = = 22.4 km/sec. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. 903 mi) at the poles and 6371. Point B, which appears due east from A, will be closer to the equator than A. Its surface gravity is 274 m/s 2 or 28.0 times that of the Earth. 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Each of the models in common use involve some notion of the geometric radius. As the parallels run east and west, places having the same latitude will be due east or due west of each other. He also shares personal stories and insights from his own journey as a scientist and researcher. How many meters is the earth? Area of sphere= 4pier 2. ( Image credit: Ayhan Altun) There are nearly 8 billion people (opens in new tab) living on Earth today, but our planet wasnt always so crowded. Earth radius (denoted as R or Eratosthenes methods result in a formula that would look like this: 39,350 = 2 x 3.14 x r, or 6,267 kilometers. Physics, 22. Thus, the surface of the earth at the. R What is the mass of this planet in terms of Earth's mass? 3 a) The radius of the earth is 4000 miles. [27] However, the 1492 enactment of that voyage brought his fleet to the Americas. Given local and transient influences on surface height, the values defined below are based on a "general purpose" model, refined as globally precisely as possible within 5m (16ft) of reference ellipsoid height, and to within 100m (330ft) of mean sea level (neglecting geoid height). Part 4: Computation . Also, explore tools to convert Earths equatorial radius or meter to other length units or learn more about length conversions. Instant free online tool for Earths equatorial radius to meter conversion or vice versa. = about 6,367.445km (3,956.547mi), can also be used. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. This cookie is set by GDPR Cookie Consent plugin. Andrew Blum gives some tips that could students in the high-school class in Clinton, Mississippi because they focus on the Eratosthenes project. This measurement also introduces another fun source of error that actually comes from the motion of Earth and other similar planetary bodies in the solar system. What is the number in scientific notation? The cases below considers Earth's topography, above or below a reference ellipsoid. The dashed line designates the radius to one point on the surface. . 6,371,000 metersThe value, symbolized rearth, is equal to approximately 6,371,000 meters (6.371 x 106 m). We must convert the radius into centimeters: R Moon = 1738 km X (1000m / km) X (100cm / m) = 1.738 X 10 8 cm. z Earths Equatorial Radius to Meter Conversion TableEarths Equatorial RadiusMeter (m)0. It is a common misconception that Terra is the internationally-recognized scientific name of the planet, but in reality Earth does not have an official international name. The standard English name of the planet, including in science, is Earth. [Mass of the earth is 6 x 1024 kg and radius of the earth is 6.4 x 106 m]. Earth, as we know now, is an oblate spheroid, as shown in the above figure. Mathematically, Earth is a spheroid. The majority of the data posted was remarkably good, stated Jennifer Fischer, the APS project leader. [9] If one point had appeared due east of the other, one finds the approximate curvature in the eastwest direction. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. where e2 = a2 b2/a2 and A is the surface area of the spheroid. 2 [2] All three values are about 6,371 kilometres (3,959mi). Measured around the poles, the circumference is 40,007.863 km (24,859.734 mi). r . For information on the Earth, see the Earth Fact Sheet. {\displaystyle {\frac {\partial r}{\partial \lambda }}} These cookies will be stored in your browser only with your consent. Q4. = find the radius of mars. \text {Circumference} = 39,350 \text {\ kilometers} Circumference = 39,350 kilometers. = According to Newtons second law of motion, the acceleration of an object equals the net force acting on it divided by its mass, or a = F m . (a) To what radius (in meters) would the earth have to be compressed in order for it to become a black holethe escape velocity from its surface equal to the velocity c = 3 \times 10 ^ { 8 } \mathrm { m } / \mathrm { s } c = 3108m/s of light? What is the fluid speed in a fire hose with a 9.00 cm diameter carrying 80.0 l of water per second? Keplers Third law can be used to determine the orbital radius of the planet if the mass of the orbiting star is known (R3=T2Mstar/Msun, the radius is in AU and the period is in earth years). Our descriptions of Earths surface must be simpler than reality in order to be tractable. R Circumference of Earth is the length or the distance around the Earth. These cookies track visitors across websites and collect information to provide customized ads. The oblateness constant q is given by, where is the angular frequency, G is the gravitational constant, and M is the mass of the planet. Record the measurements. Compute the radius of the Earth using the formula C (circumference) = 2 x pi x r (radius). At the equator, the radius of Earth is 3963 miles (Diameter = 7926 miles). The actual radius of the earth is 6,378.1 kilometers at the equator, but the radius varies because the earth is a somewhat flattened sphere. mpanderla95. a) The diameter of the earth is approximately 1.276 1 0 7 1.276 \times 10^7 1.276107 m in scientific notation. F It is the smallest planet in the Solar System, with an equatorial radius of 2,439.7 km. The radius of Earth at the equator is 3,963 miles (6,378 kilometers), according to NASA's Goddard Space Flight Center in Greenbelt, Maryland. Geometrically, the second fundamental form gives the distance from Solution Verified 752 km (3949. Drive one of the meter sticks into the ground in your location in a sunny spot. You have to find the circumference. Find the level of Earth in cubic meters. Although the precise strength of Earth's gravity varies depending on location, the nominal "average" value at the Earth's surface, known as standard gravity is, by definition, 9.80665 m/s 2 (32.1737 ft/s 2 ). 1 The following is a partial list of models of Earth's surface, ordered from exact to more approximate: In the case of the geoid and ellipsoids, the fixed distance from any point on the model to the specified center is called "a radius of the Earth" or "the radius of the Earth at that point". That's between 28 and 29 Earths. We invite readers to visit us daily, explore topics of interest, and gain new perspectives along the way. This cookie is set by GDPR Cookie Consent plugin. Its "up" direction there is shown with a black segment: it is, by definition, perpendicular to the ellipse at that point. MITs Alan , In 2020, as a response to the disruption caused by COVID-19, the College Board modified the AP exams so they were shorter, administered online, covered less material, and had a different format than previous tests. At room temperature, it will go from a solid to a gas directly. Definitions and Formulas. A The radius of the earth is the straight distance from the earth's center to a point on its surface. Circumference of the Earth in Meters {\displaystyle R_{E}} Use scientific notation to show the above value of the radius. = 6,356.8km (3,949.9mi). Geodetic ellipsoids are better suited to regional idiosyncrasies of the geoid. which is different from the precise result by under 1m (4105in) the mean of these two axes. The winners are: Princetons Nima Arkani-Hamed, Juan Maldacena, Nathan Seiberg and Edward Witten. 2 The circumference of the Earth can be calculated using the formula, Circumference = 2 R or D, where R is the radius of Earth and D is the diameter. Analytical cookies are used to understand how visitors interact with the website. Earth's volume is estimated at 1 trillion cubic kilometers. What is radius of Earth in gravitation Class 9? View this answer. {\displaystyle K=\kappa _{1}\,\kappa _{2}={\frac {\det \,B}{\det \,A}}} There are two types of crust; oceanic and continental. For a perfect sphere without any mountains, the distance d from a transmitting antenna to the horizon or the line of sight, or radio horizon, can be calculated from the Pythagorean theorem (see the picture above):. The radius of the earth's orbit is 45,000,000 meters. One can only adopt an idealized model. It is 6356. [1]:3 The nominal polar Earth radius is defined as {\displaystyle K} How do you find the radius of the earth from the circumference? The structure of the Earths upper mantle can be derived from seismic waves. 6378 X 2 = 12 756 km. ] What is the Radius and Diameter of a Circle? Its nice to determine that measurements taken by a lot of groups, sometimes in under ideal conditions, came so near to the right answer. Based on data taken by 183 high-school classes taking part in a global Year of Physics project, Appraise the Earth with Shadows, the radius of Earth is 6563 km, when compared to recognized value for that mean radius of 6371 km. Since he knew the distance between the locations, he was able to determine the circumference of the earth, and therefore the diameter and radius as well. The value for the equatorial radius is defined to the nearest 0.1m in WGS-84. The diameter is the distance from side to side, if you. First week only $6.99! [f], This Earth's prime-vertical radius of curvature, also called the Earth's transverse radius of curvature, is defined perpendicular (orthogonal) to M at geodetic latitude is:[g], N can also be interpreted geometrically as the normal distance from the ellipsoid surface to the polar axis. for an oblate spheroid, the curvatures are. The core is found about 2,900 kilometers (1,802 miles) below Earth's surface, and has a radius of about 3,485 kilometers (2,165 miles). {\displaystyle {\frac {\partial r}{\partial \varphi }}} Like a torus, the curvature at a point will be greatest (tightest) in one direction (northsouth on Earth) and smallest (flattest) perpendicularly (eastwest). Thus, the radius of the earth in meters in scientific notation is 6.371106m. 71% of Earths surface is water. A partial surface of an ellipsoid gets fitted to the region, in which case the center and orientation of the ellipsoid generally do not coincide with the earth's center of mass or axis of rotation. , The topographical mean geocentric distance averages elevations everywhere, resulting in a value 230m larger than the IUGG mean radius, the authalic radius, or the volumetric radius.

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