Which is always needed to change an object’s state of motion? A.
friction
B.
an unbalanced force
C.
a balanced force
D.
gravity

B) an unbalanced force

An example would be that you push on a ball traveling in one direction, to alter the course of the ball's direction.

If a balanced force was applied, then the ball would not change velocity. For example, say you push with 10 newtons north, but a counterbalanced force of 10 newtons was aimed south, this would mean the two forces cancel each other out so to speak.

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

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