A Modern Measurement Of The Radius Of The Earth

Earth's mean radius- The Earth's mean radius is determined as the average distance from the physical center to the surface, based on a large number of samples. The value, symbolized rearth, is equal to approximately 6,371,000 meters (6.371 x 106...Earth radius (denoted by the symbol R ⊕ or by ) 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 maximum of nearly 6,378 km (3,963 mi) (equatorial radius, denoted a) to a minimum of nearly 6,357 km (3,950 mi) (polar radius, denoted b).. A nominal Earth radius is sometimes used as aWhat is the Radius of the Earth? Radius refers to a line that connects to the centre point of a circle to any point on its outside layer. In simple words, radius refers to that line, which originates from any point of the circle and touches the centre point the circle.When the radius of earth is reduced by 1% without changing the mass, then the acceleration due to gravity will. A. increase by 2 % B. decrease by 1. 5 % C. increase by 1 % D. decrease by 1 % Medium. Answer. Correct option is . A. increase by 2 % Acceleration due to gravity at surface, g = R 2 G MThe Atmosphere is really a thin envelope surrounding the earth: So, the atmospheric depth is 30 km/6400 km= 0.5% of earth's radius. Q: if earth were a basketball how thick would be the atmosphere? Q: How is the atmosphere held to the earth???

Earth radius - Wikipedia

At what height Earth gravity is zero? Near the surface of the Earth (sea level), gravity decreases with height such that linear extrapolation would give zero gravity at a height of one half of the Earth's radius - (9.8 m·s − 2 per 3,200 km.) What is the size and shape of Earth? It is an oblate spheroid.If the Earth is treated as an isolated sphere, it can be viewed as one capacitor "plate" surrounded by another spherical "plate" that has infinite radius. When you do the math, the self-capacitance (or isotropic capacitance) of the Earth is about 710 uF.With a radius of 3,959 miles (6,371 kilometers), Earth is the biggest of the terrestrial planets, and the fifth largest planet overall.I show you how to calculate the radius of the Earth using just the sunset, a stopwatch, and a bit of math.To donate money to support the production of more v...

How to Find the Radius of the Earth? | An Overview

Measure the Earth's Radius with a Stopwatch Is it possible to measure the earth's radius -- armed only with a stopwatch? Yes! The answer will be only approximate, but that's a lot better than nothing. The basic idea is to look at a sunrise or sunset (or moonrise or moonset) in a very particular manner: For a sunrise (or moonrise)With his formula Biruni arrived at the value of the circumference of the earth within 200 miles of the actual value of 24,902 miles, that is less then 1% of error. Biruni's stated radius of 6335.725 km is also very close to the original value. Criticism on Al-Biruni's MethodEarth's Size Volume: 6.73 x 10 11 cubic miles (1.083 x 10 12 km 3) Radius: 3,959 miles (6,371 km) Diameter: 7,918 miles (12,742 km) Surface Area: 1.97 x10 8 square miles (5.1 x 10 8 km 2) Mass: 5.972 x 10 24 kgThe accepted value for the radius of the Earth is around 6.38 x 10 6 meters. I think I could get a much better answer if I took more careful measurements.Ignore effects of the Earth. The radius of the Moon is 1740 km. Express your answer using two significant figures. T = 7300 s. A satellite of mass 5700 kg orbits the Earth and has a period of 6200 s. Determine the radius of its circular orbit.

Earth, the 3rd planet from the sun, is the fifth largest planet in the sun gadget; most effective the gasoline giants Jupiter, Saturn, Uranus and Neptune are larger. Earth is the greatest of the terrestrial planets of the inside sun system, bigger than Mercury, Venus and Mars. But how large is the Earth, exactly?

Radius, diameter and circumference

The radius of Earth at the equator is 3,963 miles (6,378 kilometers), consistent with NASA's Goddard Space Flight Center. However, Earth is not rather a sphere. The planet's rotation causes it to bulge at the equator. Earth's polar radius is 3,950 miles (6,356 km) — a distinction of 13 miles (22 km).

Using the ones measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km). However, from pole-to-pole — the meridional circumference — Earth is simplest 24,860 miles (40,008 km) around. This shape, brought about by way of the flattening at the poles, is known as an oblate spheroid.

Related: What's the Speed of Earth Around the Sun?

Density, mass and quantity

Earth's density is 5.513 grams consistent with cubic centimeter, according to NASA. Earth is the densest planet in the solar device as a result of of its metallic core and rocky mantle. Jupiter, which is 318 extra large than Earth, is much less dense as it is made of gases, comparable to hydrogen.

Earth's mass is 6.6 sextillion tons (5.9722 x 1024 kilograms). It volume is about 260 billion cubic miles (1 trillion cubic kilometers).

The total surface area of Earth is about 197 million sq. miles (510 million square km). About seventy one percent is covered by means of water and 29 percent by way of land.

Highest and lowest issues

Mount Everest is the highest place on Earth above sea degree, at 29,028 ft (8,848 meters), however it is no longer the easiest point on Earth — that is, the place maximum distant from the middle of the Earth. That distinction belongs to Mount Chimaborazo in the Andes Mountains in Ecuador, in line with the National Oceanic and Atmospheric Administration (NOAA). Although Chimaborazo is about 10,000 feet shorter (relative to sea level) than Everest, this mountain is about 6,800 toes (2,073 m) farther into space because of the equatorial bulge.

The lowest level on Earth is Challenger Deep in the Mariana Trench in the western Pacific Ocean, in line with the NOAA. It reaches down about 36,two hundred feet (11,034 meters) beneath sea stage.