what is the radius of the earth in metersmost educated person in zimbabwe

You can do this, too, by using his method. Q. Also, explore tools to convert Earths equatorial radius or meter to other length units or learn more about length conversions. A) 4.5 x 10-7 B) 4.5 x 107 C) 45 x 10-6 D) 45 x 106 Q4. While specific values differ, the concepts in this article generalize to any major planet. The circumference of the Earth is the length or distance measured around it. How do you express the earths diameter in scientific notation? The other two are the radii of curvature. The value for the polar radius in this section has been rounded to the nearest 0.1m, which is expected to be adequate for most uses. Facts about the earth Since the earth is a sphere, we can measure its diameter and radius. At the equator, the radius of Earth is 3963 miles (Diameter = 7926 miles). [1]:3 The nominal polar Earth radius is defined as This cookie is set by GDPR Cookie Consent plugin. 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). Solution Verified One reason that our program is so strong is that our . Mass (10 24 kg) 5.9722 Volume (10 10 km 3) 108.321 Equatorial radius (km) 6378.137 Polar radius (km) 6356.752 Volumetric mean radius (km) 6371.000 Core radius (km) 3485 Ellipticity (Flattening) 0.003353 Mean density (kg/m 3) 5513 Surface gravity (m/s 2) 9.798 Surface acceleration (m/s 2) 9.780 Escape velocity (km/s) 11.186 GM (x 10 6 km 3 /s 2) He studied in Athens at the Lyceum. This difference is the geoid height, positive above or outside the ellipsoid, negative below or inside. . Hence, we create models to approximate characteristics of Earth's surface, generally relying on the simplest model that suits the need. [Mass of the earth is 6 x 1024 kg and radius of the earth is 6.4 x 106 m]. ) is the distance from the center of Earth to a point on or near its surface. a) Calculate the average density of the white dwarf. 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. It is possible to combine the principal radii of curvature above in a non-directional manner. The value of standard gravity corresponds to the gravity on Earth at a radius of 6,375.4 kilometres (3,961.5 mi). = This section describes the common ways. 903 mi) at the poles and 6371. The Earths circumference is approximately 40,000,000 meters. There are two principal radii of curvature: along the meridional and prime-vertical normal sections. Hence, we create models to approximate characteristics of Earths surface, generally relying on the simplest model that suits the need. Earths radius is usually given as 6378137 meters (equatorial radius), its flattening is defined as 1/298.257223 (WGS84), and thus its polar radius is calculated as 6356752 meters.However, the av. r Its the only planet with life. = 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". Necessary cookies are absolutely essential for the website to function properly. However, Earth is not quite a sphere. The geoid height can change abruptly due to earthquakes (such as the Sumatra-Andaman earthquake) or reduction in ice masses (such as Greenland).[5]. , For Earth, the volumetric radius equals 6,371. => When Wi-Fi is available location accuracy is usually between 20 - 50 meters. Furthermore, the bulge in the equator shows slow variations. 752 km (3949. Historically, these models were based on regional topography, giving the best reference ellipsoid for the area under survey. [Mass of the earth is 6 x 1024 kg and radius of the earth is 6.4 x 106 m]. We invite readers to visit us daily, explore topics of interest, and gain new perspectives along the way. The orbit of Earth ranges from 1.47 to 1.52 x 10 11 meters from the Sun. The average light travel time to the earth is 8.3 minutes. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Let the mass of the earth be M and radius of the earth be R, The distance of the body from the center of the earth will also be equal to the radius R of the earth. The equatorial radius is most commonly used to calculate the volume of Earth, so as not to leave out any territory. The corresponding radius of curvature depends on the location and direction of measurement from that point. Therefore, the Earth radius isn't constant, but it can be calculated for every location. 5.98 10 24 kg. The value of the radius is completely dependent upon the latitude in the case of an ellipsoid model, and nearly so on the geoid. However, for purposes of uniformity and use in geophysics and astronomy, the nominal earth radius is used, which is about 6, 371 km. See the formula used in an example where we are given the diameter of the sphere. {\displaystyle r=[r^{1},r^{2},r^{3}]^{T}=[x,y,z]^{T}} Asteroids range in size from Vesta - the largest at about 329 miles (530 kilometers) in diameter - to bodies that are less than 33 feet (10 meters) across. Where R is the radius of the Earth. We also use third-party cookies that help us analyze and understand how you use this website. nasa.gov. The structure of the Earths upper mantle can be derived from seismic waves. The majority of the data posted was remarkably good, stated Jennifer Fischer, the APS project leader. Regarding this, what is the diameter of the Earth in scientific notation? On solving the circumference of the earth we get 39,350 kilometres. Literature guides . This cookie is set by GDPR Cookie Consent plugin. , (8,849 meters), but it is not the highest point on Earth that is, the place most distant from the . What is radius of Earth in gravitation Class 9? 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. The mathematical expressions above apply over the surface of the ellipsoid. 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. This quantity is denoted variously as . However, Earth is not quite a sphere. Video advice: What is EARTH RADIUS? Though he did not have instant communications as we do now, he was able to determine the angle of the suns rays in Alexandria at the same time, which was about 7.2 degrees. The information were posted by senior high school classes all over the US, plus some in Canada and Mexico, employed in pairs. [e] For the Earth .mw-parser-output .sfrac{white-space:nowrap}.mw-parser-output .sfrac.tion,.mw-parser-output .sfrac .tion{display:inline-block;vertical-align:-0.5em;font-size:85%;text-align:center}.mw-parser-output .sfrac .num,.mw-parser-output .sfrac .den{display:block;line-height:1em;margin:0 0.1em}.mw-parser-output .sfrac .den{border-top:1px solid}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}1/q 289, which is close to the measured inverse flattening 1/f 298.257. This cookie is set by GDPR Cookie Consent plugin. The height above sea level of the location is added. The radius of the earth's orbit is 45,000,000 meters. , and because Other ways to define and measure the Earth radius involve the radius of curvature. 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). 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. N 1 How do you find the acceleration of a system? The WGS84 ellipsoid can be used worldwide (such as the ridiculously over-precise flattening value). The Earth's mean radius of curvature at latitude is:[12]:97. 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 Using the Gauss-Bonnet theorem, this gives, Another spherical model is defined by the Earth's volumetric radius, which is the radius of a sphere of volume equal to the ellipsoid. It is with the values I gave you. The radius of the sun at 696,000 km is 109 times the Earth's radius. At room temperature, it will go from a solid to a gas directly. Earth is the third planet from the sun. Please enter the latitude in decimal degrees, here you can convert coordinates. Another global radius is the Earth's rectifying radius, giving a sphere with circumference equal to the perimeter of the ellipse described by any polar cross section of the ellipsoid. According to the law of gravitation, the gravitational force F of the earth acting on a body is given by: Mass of the Earth Formula =6 1024 kg Mass of earth in kg This equation for acceleration can , Dry ice is the name for carbon dioxide in its solid state. [2] An Enormous, Unknown Cambrian Bug Fossil Has Been Discovered within the Eerie Burgess Shale, Ancient Tracks May Be The Oldest Hominin Footprints Ever Found, Scientists Say, By 2500, Earth Will Be Alien To Humans If We Dont Act Now, Scientists Warn, Responsibility disclaimer and privacy policy, Topics Related to Circumference of the Earth. He noticed that the difference in the angle of a shadow in his location at Syene, which is present-day Aswan in Egypt, and that of a shadow in Alexandria was about 7. mpanderla95. 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. The extrema geocentric radii on the ellipsoid coincide with the equatorial and polar radii. You can do this, too, by using his method. The polar radius of the Earth is 3,950 miles (6,356), which is a 13-mile (22-kilometer) difference. Radius refers to a line that connects to the centre point of a circle to any point on its outside layer. Earth radius (denoted as R or 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. r to the plane tangent at What is the number in scientific notation? Ocean Worlds Resources. Putting in the numbers, you have Dividing both sides by m1 gives you the acceleration due to gravity: Newton's law of gravitation gives you the acceleration due to gravity near the surface of the Earth: 9.8 meters/second 2. 6.371 10 6 m . Earths Equatorial Radius to Meter Conversion Table, How to Convert Earths Equatorial Radius to Meter, Convert Earths Equatorial Radius to Other Length Units. less than 6400 km. In simple words, radius refers to that line, which originates from any point of the circle and touches the centre point the circle. Science atlas, our goal is to spark the curiosity that exists in all of us. Derived quantities: diameter, circumference, arc-length, area, volume, There is no single center to the geoid; it varies according to local. Since the earth's surface is 6.37 x 10 6 m from its center (that's the radius of the earth), the satellite must be a height of. Earth's volume is estimated at 1 trillion cubic kilometers. The Earth's polar radius of curvature (either meridional or prime-vertical) is: The principal curvatures are the roots of Equation (125) in:[11]. Q4. The typical radius of the world is roughly 6. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. As , EL NORTE is a melodrama divided into three acts. 2 R = 6371 km is the mean Earth radius.. 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):. ) Given you're looking for a simple formula, this is probably the simplest way to do it, assuming that the Earth is a sphere with a circumference of 40075 km. . The distance to the centre of the Earth has been taken as the volumetric mean radius of the Earth: 6,371km. 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. Her latest book, "A Travel for Taste: Germany," was published in 2015. The Bohr model of the atom predicted the radius of the lowest-energy electron orbit. It is a physical constant which represents the most probable distance between the electron and the nucleus in a hydrogen atom in its ground state. Our descriptions of Earths surface must be simpler than reality in order to be tractable. In physics, it is established that the acceleration due togravity, g (in meters/sec 2), at a height h meters abovesea level is given by g(h)= 3.99 *10 14 (6.374* 10 6 + h) 2 where 6.374 * 10 6 isthe radius of the Earth in meters. Find the level of Earth in cubic meters. A globally-average value is usually considered to be 6,371 kilometres (3,959mi) with a 0.3% variability (10 km) for the following reasons. Nowadays there are better ellipsoids when it comes to supplying a much better fit to mean ocean level compared to WGS84 ellipsoid. Measured around the Equator, it is 40,075.017 km (24,901.461 mi). The radius of the swimming pool water atom is roughly meters. Your email address will not be published. a) The radius of the earth is 4000 miles. The cookie is used to store the user consent for the cookies in the category "Performance". 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. According to NASA's Goddard Space Flight Center, Earth's radius at the equator is 3,963 miles (6,378 kilometers). 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. [d] It is also common to refer to any mean radius of a spherical model as "the radius of the earth". (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? Measurement of Earths circumference has been important to navigation since ancient times. , What is the radius of Earth in meters? . R=6370 3. The meridional mean is well approximated by the semicubic mean of the two axes,[citation needed]. r [2] All three values are about 6,371 kilometres (3,959mi). arrow_forward. After completing his degree, George worked as a postdoctoral researcher at CERN, the world's largest particle physics laboratory. Thus, the radius of the earth in meters in scientific notation is 6.371106m. Could E.T. r Make sure both sticks are perpendicular to the earth and that the same length of stick protrudes from the ground. 371 106 m), the bottom unit of length within the Worldwide System of Units (SI). Now, lets plug in some numbers. 1. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. {\displaystyle K} Example 2. [2], For Earth, the volumetric radius equals 6,371.0008km (3,958.7564mi).[13]. 2 F Earth, the third planet from the sun, is one of the most unique celestial bodies in our solar system. Also see the Table of Physical Units and Constants. In astronomy, the International Astronomical Union denotes the nominal equatorial Earth radius as The earth is made up of three different layers: the crust, the mantle and the core. 2 1999. Your partner should measure at the same time, regardless of time difference. What is the Radius of the Earth? [ K Tack one end of a piece of string to the top of the stick. Obviously, nobody is claiming how big Earth has really altered. The model is rotated in a wind tunnel at a rotational speed of 500 rev/minrev/min. The value for the equatorial radius is defined to the nearest 0.1m in WGS-84. Andrew Blum gives some tips that could students in the high-school class in Clinton, Mississippi because they focus on the Eratosthenes project. Ans. See answer. 0 w A How much is a trillion in scientific notation? Approximating the figure of Earth by an Earth spheroid, the radius ranges from a maximum of nearly 6,378km (3,963mi) (equatorial radius, denoted a) to a minimum of nearly 6,357km (3,950mi) (polar radius, denoted b). Sun: radius = 696,000 kilometers, > 100 occasions bigger. Convert the Earth-Sun distance of 93,000,000 miles into. This cookie is set by GDPR Cookie Consent plugin. {\displaystyle w^{2}=\lambda ,}. 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. View this answer. => When indoor location is available, the accuracy range can be as small as 5 meters. A meter is a meter, no matter what your zoom level is. {\displaystyle r} , We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Of course, no one is claiming the size of Earth has actually changed. As an example, we will use Eratosthenes measurements. However, around 1730, Jacques Cassini argued for a prolate spheroid instead, due to different interpretations of the Newtonian mechanics involved. nasa.gov. r = m v 2 F c . What is the number in scientific notation? Multiplyin. 6 m0. Equatorial radius is conventionally used as the nominal value unless the polar radius is explicitly required. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Likewise for surface area, either based on a map projection or a geodesic polygon. 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? for an oblate spheroid, the curvatures are. You also have the option to opt-out of these cookies. Mass of planet M = 8 x mass of earth = 8 x 6 x 10 24 kg. First of NASA's SunRISE SmallSats Rolls Off Production Line. = 6,356.8km (3,949.9mi). 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. When it is measured around the equator, it is40,075 km (approximately, 24,901 miles), whereas, if it measured from the north pole to the south pole it is40,008 km (approximately, 24,860 miles). In scientific notation, the radius of the earth in meters is equal to 6.37106 meters or approximately 6.4106 meters, and 6378100 or approximately 6370000 in standard form. An arc of 1 radian = the radial distance of the the latitude circle, from. , For Earth, the volumetric radius equals 6,371.0008km (3,958.7564mi). N 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. How do we measure the diameter of the Earth? What happens to the dry ice at room pressure and temperature? The standard English name of the planet, including in science, is Earth. [clarification needed]. Not all deformations originate within the Earth. How do you find the radius of a gravitational field? Explanation: The Earth's radius (r) is 6371 km or 3959 miles, based on numbers from Wikipedia, which gives a circumference (c) of c = 2 * * r = 40 030 km We wish to find the height (h) which is the drop in curvature over the distance (d) Using the circumference we find that 1 kilometer has the angle 360 / 40 030 km = 0.009. , h is the transmitting antenna height above the ground,. Earth, on the other hand, isn't quite a sphere. 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. He received his Ph.D. in physics from the University of California, Berkeley, where he conducted research on particle physics and cosmology. . This video explains how humans managed to measure the circumference of the earth long long ago using simple math, reasoning and assumptions. The dashed line designates the radius to one point on the surface. Earths circumference is the distance around Earth. To determine the diameter of the earth in metres first multiply the original value by 2. Using the curvature of the Earth relative to the parallel light from the sun, we can observe shadows at different locations on the surface of the Earth to find the Earths radius. Have your partner do the same in her location. When identifying the position of an observable location, the use of more precise values for WGS-84 radii may not yield a corresponding improvement in accuracy. Skip to main content. [4], The variation in density and crustal thickness causes gravity to vary across the surface and in time, so that the mean sea level differs from the ellipsoid. 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 . Your email address will not be published. 6378 X 2 = 12 756 km. In the modern age, satellites often provide the most accurate and current information through global imaging. Our goal is to make science relevant and fun for everyone. NASA Telescope Takes 12-Year Time-Lapse Movie of Entire Sky. Born and raised in the city of London, Alexander Johnson studied biology and chemistry in college and went on to earn a PhD in biochemistry. 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. Semi-minor axis b = 6356752.3142 meters. 3 06. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. 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! Regardless of the model, any radius falls between the polar minimum of about 6,357km and the equatorial maximum of about 6,378km (3,950 to 3,963mi). A consequence is that a distance to the true horizon at the equator is slightly shorter in the northsouth direction than in the eastwest direction. Thus, the radius of the earth in meters in scientific notation is 6.371106m. 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.

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