I’m guessing convection currents since you mention mantle and core, reminds me of heat
Answer:
a horizontal force of 120N to Push the block into the floor is called net force
9.67 hrs. Like if this helped :)
The length of the potatoes is (0.4) x (the length of the pan).
The width of the potatoes is (0.2) x (the width of the pan).
Answer:
The value is 
Explanation:
From the question we are told that
The height of the water is 
The density of oil is 
The height of oil is 
Given that both arms of the tube are open then the pressure on both side is the same
So

=> Here

where
is the density of water with value 
and
is the atmospheric pressure
and

=> 
=> 
=> 
=> 
The difference in height is evaluated as

