Because it’s warmer and more humid
Answer:
It is the force that is present because of the mass of our planet. it's what keeps us stuck on the surface of Earth rather than floating off into space.
Answer: 0.16
Explanation:
Newton's second law states that the resultant of the forces exerted on the bookcase is equal to the product between the mass (m) and the acceleration (a):

where
F = 58 N is the force applied
Ff is the frictional force
Substituting, we find the frictional force

The frictional force has the form:

where
is the coefficient of kinetic friction. Re-arranging the formula, we can find the coefficient:
