Answer:
0.5I0
Explanation:
Because once ligh passes though any polarizer 50% of it is gone. The second polarizer is also oriented in the same direction so it passes through with no effect.
Answer: the statement that describes the transformation of energy is statement B (The potential energy was turned into Albertine's kinetic energy, which was then converted into internal(thermal) energy.)
Explanation:
Law of conservation of energy states that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.
Throughout Albertine's journey, no energy was lost. Her potential energy was converted to kinetic energy and then to thermal energy of the body.
Answer:
Once you reach adulthood, you will not experience peer pressure.
Explanation:
We tend to believe that self-control comes from within, but many of our attitudes depend as much on friends and family as on ourselves. That's because at any stage of our life (even the adult stage) our friends and our family have the power to influence us, sometimes that influence is good and sometimes bad, it's up to us to reason about them.
The people around us have the power to make us fat, consume more alcohol, worry less about the environment and expose ourselves to the sun without proper protection, among many other things.
It is not simply about peer pressure, where you deliberately act in a certain way to suit the group. It is, in fact, largely an unconscious attitude. Without your awareness, your brain is constantly picking up cues from people around you to dictate your behavior. And the consequences can be serious.
The potential energy of the object is 78.4 J
Explanation:
The gravitational potential energy (GPE) of an object is the energy possessed by the object due to its position in a gravitational field.
For an object near the Earth's surface, the GPE is given by:
where
m is the mass of the object
is the acceleration of gravity near the Earth's surface
h is the height of the object relative to the surface
For the object in this problem,
m = 2 kg
h = 4 m
Substituting, we find its GPE:
Learn more about potential energy:
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