How many feet round is the earth?
The circumference of the Earth is 131,477,280 feet around; or 24,901 miles.
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 deep is the earth’s radius?
The earth’s equatorial radius is 6,378km; assuming this is reasonably accurate for the Western Deep Levels, the depth represents little more than 0.05% of the distance to the centre of the earth, although a latitude correction should be made.
How many km2 is the Earth?
196.9 million mi²Earth / Surface area
What is Earth’s radius in physics?
According to data taken by 183 high-school classes participating in a World Year of Physics project, “Measure the Earth with Shadows”, the radius of Earth is 6563 km, compared to the accepted value for the mean radius of 6371 km.
What is the radius of the earth Class 11?
6370 km
The radius of the earth is 6370 km and of mars is 3400 km.
What is the deepest man has been in the Earth?
The deepest hole by far is one on the Kola Peninsula in Russia near Murmansk, referred to as the “Kola well.” It was drilled for research purposes beginning in 1970. After five years, the Kola well had reached 7km (about 23,000ft).
How deep have we drilled into the Earth?
approximately 7.5 miles
Known as the Kola Superdeep Borehole, the deepest hole ever dug reaches approximately 7.5 miles below the Earth’s surface (or 12,262 meters), a depth that took about 20 years to reach. The hole was intended to go “as deep as possible,” which researches expected to be around 9 miles (that’s ~14,500 meters).
What is the radius and diameter of Earth?
Both of these values are very close to the accepted modern values for the Earth’s circumference and radius, 40,070 km and 6378 km respectively, which have since been measured by orbiting spacecraft. The diameter of a circle is twice the radius, giving us a diameter for Earth of 12,756 km.