WebFind the distance along an arc on the surface of Earth that subtends a central angle of 5 minutes (1 minute = 1/60 degree). The radius of Earth is 3,960 mi. WebSep 4, 2016 · The radius, or distance from the axis is r = X 2 + Y 2 = 6173820.93 meters. Last time I checked (1970) the Earth's rotation period was 23h, 56m, 4.09s, or 86164.09 seconds. Speed is then the circumference divided by the rotation period: s p e e d = 2 π r T That makes the speed 450.202 m/s or 1620.72 kph.
What is a nautical mile, and how does it differ from a normal mi ...
WebOn solving the circumference of the earth we get 39,350 kilometres. So the radius of the earth will be. Circumference = 2πr. 39,350 = 2 × 3.14 × r. r = 39350/ 6.28 = 6267 kilometer. WebOct 26, 1998 · 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. Thus, the surface of the earth at the equator ... pinchfield animal farm
How to Find the Radius of the Earth? An Overview - Toppr
Regardless of the model, any radius falls between the polar minimum of about 6,357 km and the equatorial maximum of about 6,378 km (3,950 to 3,963 mi). Hence, the Earth deviates from a perfect sphere by only a third of a percent, which supports the spherical model in most contexts and justifies the term "radius of … See more Earth radius (denoted as R🜨 or $${\displaystyle R_{E}}$$) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid, the radius ranges from a … See more The following radii are derived from the World Geodetic System 1984 (WGS-84) reference ellipsoid. It is an idealized surface, and the Earth measurements used to calculate it … See more The Earth can be modeled as a sphere in many ways. This section describes the common ways. The various radii derived here use the … See more Earth's diameter is simply twice Earth's radius; for example, equatorial diameter (2a) and polar diameter (2b). For the WGS84 ellipsoid, … See more Earth's rotation, internal density variations, and external tidal forces cause its shape to deviate systematically from a perfect sphere. Local topography increases the variance, resulting in … See more Geocentric radius The geocentric radius is the distance from the Earth's center to a point on the spheroid surface at geodetic latitude φ: See more The mathematical expressions above apply over the surface of the ellipsoid. The cases below considers Earth's topography, above or below a See more WebScience Physics Determine the mass of the earth knowing that the mean radius of the moon’s orbit about the earth is 238,910 mi and that the moon requires 27.32 days to complete one full revolution about the earth. WebEarth, for comparison, has a radius of only 2.439 km / 1.516 mi, and a diameter of just 12.742 km / 7.917 mi. All the planets in our Solar System combined account for just 0.2% of the Sun’s mass. Earth, for example, is 330.000 times less … pinchfield farm animal farm represents