Force of gravity = fg = always in the direction of the center of the earth
force applied = fa = the force applied to an object by an outside force
force of friction = ff = always opposes the motion of an object
force in a spring = fs = a compressed spring will push, a stretched spring will pull
normal force = fn = when an object sits on a surface, that surface pushes back. the
normal force is always perpendicular to the surface of support.
regarding the book. what is the actual value of both fn and fg in this
case?
o newtons
45 newtons
90 newtons

the answer is: metamorphic rocks often show the presence of fossils, also a

hope i

-lavira: )

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.