Which group of elements above comprises the largest portion of living matter?

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

What is the weight of a 8-kg substance in n, kn, kg·m/s2, kgf, lbm·ft/s2, and lbf?