No, Jabir ibn Hayyan was a prominent Islamic alchemist and chemist known for his contributions to early chemistry, not for calculating the radius of the Earth. The Earth's radius was calculated by other scientists and mathematicians, such as Eratosthenes in ancient times.
Venus has a radius of about 6,052 kilometers, which is about 95% of Earth's radius.
Venus' radius = 0.95 of Earth's Venus' mass = 0.815 of Earth's
The radius of Earth is approximately 6,371 kilometers.
The radius of Earth is about 0.95 times greater than the radius of Venus.
The Earth's radius is6 378.1kmSo that means that the earth is 1.88 (almost 2) times larger.
To calculate the circumference of the Earth, you can use the formula C 2r, where C is the circumference, is a constant (approximately 3.14159), and r is the radius of the Earth. The average radius of the Earth is about 6,371 kilometers. Plug this value into the formula to find the circumference.
Based on what? If you know the radius, you can use the formula for a sphere - which is a good approximation in the case of Earth and Moon.
The ratio of the surface areas is (earth's radius/moon's radius)^2 where the radii are in the same units.This gives the answer as 13.40, approx.And, incidentally, the word is radius, not raduis!
if g=9.8m/s, G=6.7*10-11Nm2kg-2,calculate the mass of earth, if the radius of the earth is approximately 64m
Venus has a radius of about 6,052 kilometers, which is about 95% of Earth's radius.
Eratosthenes (a greek) was the first person known to have accurately measured earth's radius. He did that about 250 BCE. The trick was to measure the length of the shadow cast by the library at Alexandria during the summer solstice, and knowing the distance between Alexandria and Cyene--a city on the Tropic of Cancer. A bit of trigonometry, and earth's radius falls right out.
This is hard to calculate precisely, due to the fact that Earth's density increases towards the center. However, you make a simplified calculation, by assuming a uniform density. Just calculate the ratio of the volume (and therefore, of mass) of a sphere which has half the radius of the Earth, and calculate the gravitational attraction (once again, you only need a ratio, compared to the complete Earth) on that object.
Venus' radius = 0.95 of Earth's Venus' mass = 0.815 of Earth's
The Earth's radius is approximately 6,371 kilometers and 3,959 miles.
If you are a believer, then God did but if you are not, then nobody did. The radius of the earth existed and therefore ots radius did before there was any form of life on earth to invent it.
The radius of Earth is approximately 6,371 kilometers.
Mercury's radius is 0.3825 that of Earth Jupiter's radius is 11.209 that of Earth So: (0.3825/11.209)*100 = 3.41 percent.