Which of the following distinguishes the difference between tractive and stationary power? Fractive power is power in motion, while stationary power is power that is put into reserve for later.
Tractive power is power that requires friction, while stationary power uses electricity instead.
Tractive power is power created by tractors, while stationary power is power that requires a jump-start.
Tractive power is power in motion, while stationary power allows power to operate in one place.

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?