What is the earth’s radius?

What is the earth’s radius?

What is Earth’s radius Class 11?

The radius of the earth is about 6370 km.

What is Earth’s radius 6371?

Earth radius
Metric system	6,357 to 6,378 km
English units	3,950 to 3,963 mi

Earth radius
Metric system	6,357 to 6,378 km
English units	3,950 to 3,963 mi

What is the radius of Earth Class 7?

The radius of the earth is 6371 km.

How old is Earth?

Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date. In northwestern Canada, they discovered rocks about 4.03 billion years old.

How heavy is the Earth?

What is the radius of the earth Mcq?

6,371 km is the radius of the earth.

What is radius also known as?

The radius and the azimuth are together called the polar coordinates, as they correspond to a two-dimensional polar coordinate system in the plane through the point, parallel to the reference plane.

Who discovered radius of Earth?

The first person to determine the size of Earth was Eratosthenes of Cyrene, who produced a surprisingly good measurement using a simple scheme that combined geometrical calculations with physical observations. Eratosthenes was born around 276 B.C., which is now Shahhat, Libya. He studied in Athens at the Lyceum.

How fast does the earth spin?

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 moves at a speed of 460 meters per second–or roughly 1,000 miles per hour.

How many Earths are in the sun?

Size and Distance Many stars are much larger – but the Sun is far more massive than our home planet: it would take more than 330,000 Earths to match the mass of the Sun, and it would take 1.3 million Earths to fill the Sun’s volume. The Sun is about 93 million miles (150 million kilometers) from Earth.

How big is Earth?

What is a radius Class 9?

The radius of a circle is the length of the line from the centre to any point on its edge. It can also be defined as, the distance from the centre of the circle to any point on the circle is called the radius.

What is a radius Class 6?

The distance from the centre point to the circle is called the radius. In other words, a line segment joining the centre of a circle with any point on the circle is called a radius (plural: radii) of that circle.

What is a radius Class 10?

A radius is a measure of distance from the center of any circular object to its outermost edge or boundary.

How is Earth radius measured?

For measuring the radius of the earth compute the circumference of the earth. Do this by taking the example of Eratosthenes and find the distance and angle between two locations. Since the distance between the two locations can be an arc measurement of the 360-degree circle.

How long is Earth in km?

Earth’s circumference (the distance all the way around the equator) is 24,901 miles (40,075 kilometers). Its diameter (the distance from one side to the other through Earth’s center) is 7,926 miles (about 12,756 kilometers).

What is radius in space?

Radius is the set of spaces selected from the whole system to be analysed round a root space. For example, it is used to select all spaces within 1000m from a root space.