If forces acting on an object are unbalanced, the object could experience a change direction, or both

The correct answer is

speed

In fact, Newton's second law states that:

where the term on the left is the resultant of the forces acting on an object, m is the object's mass, and a is its acceleration. We see from the formula that if forces acting on an object are unbalanced, this will result in a non-zero acceleration of the object.

A non-zero acceleration means a change in velocity of the object: since velocity is a vector, it consists of a magnitude (the speed) and a direction. Therefore, a non-zero acceleration means a change in either the speed of the object, or in its direction.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered