Respuesta :
In the torsion balance experiment, it compared to the densities of rocks at the earth's surface, the average density of the entire planet is around twice as high. This leads us to the conclusion that rocks found far below the earth's surface likely contain more iron and nickel than those found above it. Here option B is the correct answer.
Cavendish set up the equipment in a closed space created to allow him to shift the weights from outside. He used a telescope to look at the balance. Cavendish was able to calculate the gravitational force acting between the heavier and lighter weights by measuring how far and how long the rod traveled in each direction.
Henry Cavendish carried out an experiment to determine the Earth's density. His experimental design was adopted by other researchers to calculate G's value. To measure the torque on a wire and convert it to the gravitational force between the lead balls, a torsion balance was used in the setup.
Complete question:
The Cavendish torsion balance experiment published in 1798 demonstrated that the average density of the entire earth is 5.4 gm/cc. This leads us to the conclusion that rocks deep inside the earth
A - none of these
A - likely contain more mafic elements (e.g., iron) compared to the rocks that we find at the surface of the earth given that surficial rocks have a lower density as compared to the earth's average density
C - likely contain more silicic elements (e..., silica) compared to the rocks that we find at the surface of the earth given that surficial rocks have a higher density as compared to the earth's average density
D - are similar to the rocks that we find at the surface of the earth given that surficial rocks have the same density as compared to the earth's average density
To learn more about torsion balance
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