Aprojectile is launched at an angel into the air its verticle acceleration is g?

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Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system

What ia the energy of an object because of its potential and kinetic energies