Temperature A(3M-2)-K(p n=3 when the velocity of the center of mass is fixed to zero Kinetic energy. Kp 2mTemperature = = N i N p m K p i 1 2 2 1 ( )   Kinetic energy:   − = ( ) (3 ) 2 p N c K k N N T  Nc = 3 when the velocity of the center of mass is fixed to zero