What is the final step in the fourth stage of technological design

Determine the maximum r-value of the polar equation r =3+3 cos 0

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

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