Answer:
720 J
Explanation:
The gravitational potential energy that Essam loses for every metre is given by:
where
m=72 kg is Essam's mass
is the gravitational field strength
is the difference in height
By substituting the numbers into the formula, we find
Answer:
yes
Explanation:
this is simple
the horizontal line is adjacent
the vertical line is opposite
recall that cos x=adj/hyp
adj=hyp(cos x)
while opp=hyp(sin x)
Answer:
the formula given out a Distance x force you get work done
Answer:
Density of iron is higher than the density of oxygen because iron is solid and the particles in it are very compact but oxygen is not dense as it is gas and particles in it are loosely packed.
Oceanic crust is much denser than continental crust. This is why at convergent boundaries where oceanic and continental plates meet, the oceanic plate subducts into the upper mantle. This is also why continental plates tend to rise above oceanic plates. The reasons for this include different organic composition as well as pressure (due to gravity pulling upon the air and water).