The total energy of the system is 88.2 J
Explanation:
The total (mechanical) energy of an object is given by:
where
PE is the potential energy
KE is the kinetic energy
At the starting point, the object is at rest: this means that its kinetic energy is zero, so all its energy is potential energy, which is given by
where
m is the mass of the object
g is the acceleration of gravity
h is the height of the object
In this problem, we have (at point A):
m = 3.0 kg
h = 3.0 m
Substituting, we find:
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There are a lot of reasons why gum is bad for you but a main reason because if you make a bubble and swallow it you could choke. Another reason is because it breaks down your gums.
It is the thermal energy transferred from a hot object to a cool object.
The following statement listed above is correct.
Answer: True.
Red blood cells contain hermoglobin whiles white blood cells do not. Hermoglobin is what gives it its red color.
Well, first, let's recognize that there is no such thing as a force that is
balanced or unbalanced.
When we say that a group of two or more forces is balanced, we mean
that when you add up all the magnitudes and directions of the forces, the
whole group adds up to zero, so they have the same net effect as if there
were no force at all.
