Pure water boils at 100, degrees celsius, has a specific latent heat of vaporisation or 2260kJ/kg and a specific heat capacity of 4200J/(kg/c How much energy is required if the water started at 40, degrees celsius

Does this your question?

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.

Mass and velocity are the 2 factors used to calculate kinetic energy. the equation for kinetic energy is (1/2)mv^2. hope this !