Scenario I In the year 2100, humans successfully colonized the Moon. The lunar modules that were created could only house a small population of people. It is now a century later, and the population has grown to 3,000 people. In the current Moon population, 20 people express the recessive phenotype for cystic fibrosis (cc genotype).

Hardy Weinberg problem ...

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on