Giúp mình giả bài lý với

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

pe = weightxheight = 2000x1000=2,000,000joules

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

because if the tool that you are using is not balanced it there would be false mass.