A. Radioactive decay does not result in heat. Gravity also does not result in heat. In the Earth's mantle, it is highly unlikely that the radiation from the sun would reach that deep into the earth.
Answer:
Torque, 
Explanation:
Given that,
Coordinates, 
Force acting on the flea, 
Let 
is the net torque about the origin on a flea. It is given by the following formula :
So, the net torque about the origin on a flea is 
. Hence, this is the required solution.
Explanation:
K in chromatography is defined as a partition coefficient. It is an equilibrium constant that determines the measure to which the solutes partition between two phases.
K = Cm/Cs
where Cm is solute concentration in mobile phase
Cs is solute concentration in stationary phase
When K is more, then it implies that the solute concentration in the mobile phase is more in chromatography test.
