Answer: D Minarel extraction cannot be done in ways that does not completely destroy the environment
Explanation: Hope this helps !!
Answer:
B) 6 W
Explanation:
First of all, we need to find the work done by the force. This is given by
where
F = 4 N is the magnitude of the force
d = 3 m is the distance through which the force is applied
Substituting,
Now we can find the power, which is given by
where
W = 12 J is the work done by the force
t = 2 s is the time taken
Substituting,
The molarity remains the same so the ratio does not change
Every speck of mass in creation is attracted to every other speck
by gravitational forces. Whether or not the forces of gravity have
any influence on the motion of the specks depends on their masses
and the distances between them. Gas molecules are not immune to
the forces of gravity, but they may be relatively unaffected by them,
just as human beings are relatively unaffected by the forces of
gravitational attraction between them.