what is the radius of the earth in meters what is the radius of the earth in meters

, For Earth, the volumetric radius equals 6,371.0008km (3,958.7564mi). {\displaystyle p=N\cos(\varphi )} => When indoor location is available, the accuracy range can be as small as 5 meters. A nominal Earth radius is sometimes used as a unit of measurement in astronomy and geophysics, which is recommended by the International Astronomical Union to be the equatorial value.[1]. Then convert km - m. 1 km = 1000 m. 12 756 km = ? Since the locations are points on a circle that goes around the Earth, the distance between them can be expressed as an arc measurement on a 360-degree circle. Comment document.getElementById("comment").setAttribute( "id", "a9a1dd2ca0d2b09469aaaff6808fc4c3" );document.getElementById("ae49f29f56").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. Area of sphere= 4pier 2. More than 2,000 years ago Eratosthenes compared the position of the Suns rays in two locations to calculate the spherical size of the Earth with reasonable accuracy. You have to find the circumference. You also have the option to opt-out of these cookies. The value of the radius is completely dependent upon the latitude in the case of an ellipsoid model, and nearly so on the geoid. What is the radius of the parallel of latitude? The cases below considers Earth's topography, above or below a reference ellipsoid. Earth is the third planet from the sun. , which is defined to be 6,378.1km (3,963.2mi). 1999. Arc length of more general surface curves, such as meridian arcs and geodesics, can also be derived from Earth's equatorial and polar radii. E But opting out of some of these cookies may affect your browsing experience. Responsibility disclaimer and privacy policy | About Us | Terms & Conditions | Site Map, Scientific discoveries from around the world. 4.23 x 10 7 m - 6.37 x 10 6 m . Similarly very small numbers are written using negative exponents, e. The very first printed mention of Earths size made an appearance around 350BC, when Aristotle reported in the book Around the Heavens(18) that mathematicians had suspected the circumference of the world to become 400,000 stadia. This section describes the common ways. After completing his doctoral studies, he decided to start "ScienceOxygen" as a way to share his passion for science with others and to provide an accessible and engaging resource for those interested in learning about the latest scientific discoveries. This website uses cookies to improve your experience while you navigate through the website. , Definition of radius 1 : a line segment extending from the center of a circle or sphere to the circumference or bounding surface. What are the formula in calculating the earth? R=6370 3. The distance to the centre of the Earth has been taken as the volumetric mean radius of the Earth: 6,371km. All Right Reserved. nasa.gov. [ 2 for an oblate spheroid, the curvatures are. where may be the angular frequency, G may be the gravitational constant, and M may be the mass from the planet. 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. T he circumference of the Earth (around the equator) is approximately 24,887 miles. The bulge had been decreasing, but since 1998 the bulge has increased, possibly due to redistribution of ocean mass via currents. Rather, elevation above or below sea level is useful. where. A cylinder has a radius of 8 meters. Therefore, if the earth is taken to be a two dimensional object, its perimeter would be equal to the. This equation for acceleration can , Dry ice is the name for carbon dioxide in its solid state. 2 degrees. How far is the center of the Earth in KM? In late August of 2003, Mars was at its closest point to Earth in about 60,000 years! The cookie is used to store the user consent for the cookies in the category "Other. That's almost 32 Earths. The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Its "up" direction there is shown with a black segment: it is, by definition, perpendicular to the ellipse at that point. What is the real radius of the earth? One reason that our program is so strong is that our . [24] Claudius Ptolemy around 150AD gave empirical evidence supporting a spherical Earth,[25] but he accepted the lesser value attributed to Posidonius. Testing, Testing: Space-Bound US-European Water Mission Passes Finals. 06. E The diameter is the distance from side to side, if you. Earth's volume, or that of the reference ellipsoid, is V = 4/3a2b. The Earths equatorial radius to meter (m) conversion table and conversion steps are also listed. How did early mathematicians determine the radius of the earth? In particular, the Earth's meridional radius of curvature (in the northsouth direction) at is: where The space station is 356 feet (109 meters) end-to-end, one yard shy of the full length of an American football field including the end . How do you find the radius of the Earth using trigonometry? + A The radius of the earth is the straight distance from the earth's center to a point on its surface. = When he's not busy exploring the mysteries of the universe, George enjoys hiking and spending time with his family. How cold is it on moon? What physical measurement / elevation is used to define Earths radius? Sometimes more are aboard the station during a crew handover. At the equator, = 0 and this arc length = 111.32 km, nearly. How do you find the acceleration of a system? The average light travel time to the earth is 8.3 minutes. Mass of planet M = 8 x mass of earth = 8 x 6 x 10 24 kg. Venus is covered by a thick, rapidly spinning atmosphere, creating a scorched world with temperatures hot enough to melt lead and a surface pressure 90 times that of Earth. Analytical cookies are used to understand how visitors interact with the website. [13], The authalic radius Measured around the poles, the circumference is 40,007.863 km (24,859.734 mi). is the unit normal to the surface at r What is the radius of Earth in meters? Each pair measured the position from the sun, in the same manner the Greek philosopher Eratosthenes exceeded 2000 years back in Alexandria, Egyptby evaluating the size of an item to the size of its shadow, measured at local noon. Our Planet radius is really a unit of distance utilized in astronomy and geology. r . 137 km (3963. R In his writing, Alexander covers a wide range of topics, from cutting-edge medical research and technology to environmental science and space exploration. The geocentric radius is the distance from the Earth's center to a point on the spheroid surface at geodetic latitude : where a and b are, respectively, the equatorial radius and the polar radius. It is possible to combine the principal radii of curvature above in a non-directional manner. The standard English name of the planet, including in science, is Earth. First of NASA's SunRISE SmallSats Rolls Off Production Line. Compute the radius of the Earth using the formula C (circumference) = 2 x pi x r (radius). Q4. Therefore, the distance you use in the equation is the distance between the two orbiting bodies. The IUGG denotes the authalic radius as R2. This difference is the geoid height, positive above or outside the ellipsoid, negative below or inside. where e2 = a2 b2/a2 and A is the surface area of the spheroid. You have to use the distance from the center of the Earth, not the distance above Earth's surface, as the radius. Like a torus, the curvature at a point will be greatest (tightest) in one direction (northsouth on Earth) and smallest (flattest) perpendicularly (eastwest). Earths circumference is the distance around Earth. to have an oblate spheroid, the curvatures are. So, for him the following relationship between objects will apply: 7.2 / 360 = 787 / x. How many miles is a meter in scientific notation? Other ways to define and measure the Earth radius involve the radius of curvature. As the parallels run east and west, places having the same latitude will be due east or due west of each other. The accelerationwhich is gained by an object because of gravitational forceis called its acceleration due to gravity. For the WGS84 ellipsoid, that's respectively: Earth's circumference equals the perimeter length. The recent Juno mission launched with the goal of examining Jupiters composition and underlying structure, the wikipedia article on the Juno spacecraft provides an a great overview of this type of process. This topographical average is 6,371.230km (3,958.899mi) with uncertainty of 10m (33ft).[16]. The following radii are derived from the World Geodetic System 1984 (WGS-84) reference ellipsoid. The following equation estimates the ellipsoid radius ( r s ) using flattening ( f ) , geocentric latitude ( s ) , and equatorial radius ( R ) : r s = R 2 1 + [ 1 / ( 1 f ) 2 1 ] sin 2 s . Part 4: Computation . state. R Using the following data: the volume of a sphere = (4/3) (pi)R 3 Radius of the earth= 6.3106 m. Mass of earth= 5.9742 10 24 kilograms. Answer: Starter The radius of the moon is 1,737,000 meters. to the plane tangent at 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 radius of earth, is the distance from the centre of the Earth to a point on or near its surface, and it ranges from nearly 6,378 km to nearly 6,357 km, dhanyaranjan Published On January 28th, 2022 Table of Contents Radius of Earth in Physics The symbol R? Let us calculate area of earth using this formula area=4x22/76370= 5.110 4. The expedition found that Newton's conjecture was correct:[30] the Earth is flattened at the poles due to rotation's centrifugal force. The Earth is slightly oblate, so its radius in the plane of the equator is a little larger than its radius along the rotational axis. Drive one of the meter sticks into the ground in your location in a sunny spot. Additionally, the bulge at the equator shows slow variations. Thus, the radius of the earth in meters in scientific notation is 6.371106m. Video advice: What is EARTH RADIUS? Record the measurements. Earth Radius by Latitude Calculator Calculates radius and diameter of the Earth for a given latitude. Gravitational attraction from the Moon or Sun can cause the Earth's surface at a given point to vary by tenths of a meter over a nearly 12-hour period (see Earth tide). However, other factors such as the rotation of the Earth also contribute to the net acceleration. Hence, we create models to approximate characteristics of Earths surface, generally relying on the simplest model that suits the need. z are tangents to the surface. det = New Arrivals Expand Space Stations Crew to 6. to the plane tangent at What is the number in scientific notation? A rough, general figure for the Earths mean orbital speed is 30 kilometers per second (km/s), or 18 miles per second (mi/s). Skip to main content. For this calculation, the longitude isn't needed. 1 1 Earths equatorial radius637816 m1 Earths equatorial radius6378160 m2 Earths equatorial radius12756320 m3 Earths equatorial radius19134480 m5 Earths equatorial radius31890800 m10 Earths equatorial radius63781600 m20 Earths equatorial radius127563200 m50 Earths equatorial radius318908000 m100 Earths equatorial radius637816000 m1000 Earths equatorial radius6378160000 mHow to Convert Earths Equatorial Radius to Meter1 Earths equatorial radius = 6378160 m1 m = 1. January 2023: The Next Full Moon is the Wolf or Ice Moon. For Eratosthenes, at midday on the summer solstice where the suns angle was directly overhead, the angle was zero. George Jackson is the founder and lead contributor of Physics Network, a popular blog dedicated to exploring the fascinating world of physics. Video advice: How Eratosthenes discovered the radius of the earth. which differs from the exact result by less than 1m (4105in); the mean of the two axes. The total mass of all the asteroids combined is less than that of Earth's Moon. What is the earths radius in meters?Earth radiusSI base unit6.3781106 mMetric system6,357 to 6,378 kmEnglish units3,950 to 3,963 miEarth radiusSI base unit6.3781106 mMetric system6,357 to 6,378 kmEnglish units3,950 to 3,963 miWhat is the radius of the earth?According to data taken by 183 high-school classes participating in a World Year of Physics project, "Measure the Earth The cookie is used to store the user consent for the cookies in the category "Performance". We also use third-party cookies that help us analyze and understand how you use this website. Your email address will not be published. Because of the Earths rapid rotation, it stretches out the planet; this results in the South pole and North pole actually being slight closer than locations opposite on the equator because the shape of the Earth is not a spheroid (not a perfect sphere). Also, explore tools to convert Earths equatorial radius or meter to other length units or learn more about length conversions. When the Moon is the farthest away, it's 252,088 miles away. Necessary cookies are absolutely essential for the website to function properly. ( The cookie is used to store the user consent for the cookies in the category "Performance". Wittenberg is a nationally ranked liberal arts institution with a particular strength in the sciences. Now, lets plug in some numbers. It has a diameter of 12,756.3 km (Scientific notation: 1.2756 x 10e4) and a radius of 56,378.15 km (Scientific notation: 5.6378 x 10e4 km.) What is the mass of this planet in terms of Earth's mass? This cookie is set by GDPR Cookie Consent plugin. ) [21] The first known scientific measurement and calculation of the circumference of the Earth was performed by Eratosthenes in about 240BC. The equation for Keplers Third Law is P = a, so the period of a planets orbit (P) squared is equal to the size semi-major axis of the orbit (a) cubed when it is expressed in astronomical units. A Step 2 of 5. Earths Equatorial Radius to Meter Conversion Table, How to Convert Earths Equatorial Radius to Meter, Convert Earths Equatorial Radius to Other Length Units. 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). This calculated value became a defining value in 1993. , Unless you know indoor location is available inside the geofence, assume that Wi-Fi . In the modern age, satellites often provide the most accurate and current information through global imaging. Your partner should measure at the same time, regardless of time difference. earthRadius How do you find the radius of a planet in physics? Rotation of a planet causes it to approximate an oblate ellipsoid/spheroid with a bulge at the equator and flattening at the North and South Poles, so that the equatorial radius a is larger than the polar radius b by approximately aq. r What is radius of Earth in gravitation Class 9? And we end up with 12.6 meters per second , Firearm muzzle velocities range from approximately 120 m/s (390 ft/s) to 370 m/s (1,200 ft/s) in black powder muskets, to more than 1,200 m/s (3,900 ft/s) in modern rifles with high-velocity cartridges such as the , Summary. While carbon dioxide gas is invisible, the very cold gas , Turbines produce noise and alter visual aesthetics. r is the eccentricity of the earth. Semi-minor axis b = 6356752.3142 meters. Historically, these models were based on regional topography, giving the best reference ellipsoid for the area under survey. Measured around the Equator, it is 40,075.017 km (24,901.461 mi). Example 2. Lunar night time is also about two weeks long, during which the moon's temperature plummets to -208 degrees F (-130 C, 140 K) according to NASA. J Learn what is circumference of a sphere, how to calculate the circumference of the Earth with the help of solved examples. Reviving Erastosthenes, 2022-year-old experiment using the angle of the sun to measure the radius of the Earth. In Eratosthenes case, the distance was 787 kilometers, so for him, the following relation applied: where x = the circumference of the Earth in kilometers. Exercises. 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. arrow_forward. Convert the Earth-Sun distance of 93,000,000 miles into. How do you solve for radius and diameter? The Magellan expedition (15191522), which was the first circumnavigation of the World, soundly demonstrated the sphericity of the Earth,[28] and affirmed the original measurement of 40,000km (25,000mi) by Eratosthenes. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. radius of earth in meters scientific notation, Convert Earths Equatorial Radius to Meter, What Is Radius Of Gyration In Civil Engineering, High Definition 3D Printer Prints 5 Meters per Second, Most Precise Measurement Ever from the Radius of the Planet Outdoors Our Solar System, Scientists Uncover How Quickly-Flying Bats Can Achieve Great Heights well over 1,600 Meters, What Is The Ploidy Of This Cell Model Mastering Biology, Do The Laws Of Thermodynamics Apply In Space, How To Change Google Earth Language To English, Worlds greatest-dwelling squid spotted 20,000 ft underneath the ocean, Hatches Open! To determine the diameter of the earth in metres first multiply the original value by 2. K The magnitude of the gravitational force between earth and an object is given by the formula. How did Aristotle know the earth was round? The radius of the Earth, re, is about 6.38 10 6 meters, and the mass of the Earth is 5.98 10 24 kilograms. Above we see an object with mass m attached to a spring. So, its circumference varies depending on how you calculate it. Earth's volume is estimated at 1 trillion cubic kilometers. 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). Using the mathematical formula for calculating the volume of a sphere, it has been estimated that the volume of Earth is roughly 259 billion cubic miles. 371 106 m), the bottom unit of length within the Worldwide System of Units (SI). R The average radius of the earth is 6.38x106 meters. = Also a photographer, she records adventures by camera, combining photos with journals in her blogs. | There are two types of crust; oceanic and continental. . Thus the curvature found this way is smaller than the curvature of a circle of constant latitude, except at the equator. {\displaystyle K} Use the protractor to measure the angle where the string meets the stick at the top. Earth's rocky mantle and metallic core make it the densest planet, at 5.513 grams per cubic centimeter. NASA Telescope Takes 12-Year Time-Lapse Movie of Entire Sky. Equatorial radius a (called semi-major axis), and polar radius b (called semi-minor axis); a and eccentricity e; a and flattening f. WGS 84 defines ellipsoid parameters as: Semi-major axis a = 6378137.0 meters. b : the third and usually largest vein of an insects wing. The height above sea level of the location is added.