Which statement about forces is true? a. forces are defined by strength but not direction. b. forces are defined by direction but not strength. c. forces are defined by both strength and direction. d. forces act only on objects that are in contact.

C

Explanation:

The direction and strength affect the force

Option (C) is the correct answer.

Explanation:

A force is defined as the strength applied on an object to displace it from its initial position.

This, force applied to move the object is known as work.

Mathematically,              W = F × d

where         W = work done

                   F = force

                   d = displacement or distance moved

Thus, we can conclude that the statement forces are defined by both strength and direction, is true about forces.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: