The correct answer to the statement " Do two bodies have to be in physical contact to exert a force upon one another " is:
No, the gravitational force is a field force and does not require physical contact to exert
a force.
The correct option is a.
<h3>Why two bodies do not have to be in physical contact to exert a force upon one another as a result of gravitational force.</h3>
It has been practically proven that two bodies can exert a force upon each other even if there is no physical contact between them. This can as a result of gravity.
That being said, a magnetic attraction can also exert a force between two different bodies upon one another.
So therefore, it can be deduced from above that two different bodies do not have to be in physical contact before they exert a force upon one another.
Read more on force:
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Answer: 324.135 kJ
Explanation:
Given
Mass of dropping is 
The initial height of dropping is 
The final height of dropping 
Gravitational potential energy is the function of height i.e.
Change in Gravitational Energy is
When geophysicists measure the geothermal gradient in areas on the ridges where there is no activity hydrothermally, the gradient is far below than what is predicted theoretically, but when measured near hydrothermal vents it is more than what is predicted. This is because most of the heat is being carried through convection by hydrothermal systems so that the average gradient when measured far from the circulation would be depressed or lower.
A. Transverse wave. This is because it’s not either of the other two
