Answer:
Psychological arousal is very simimal for several emotions, so it is not always reliable for the polygraph to distinguish one emotion reaction from another. For instance guilt from other reactions.
Explanation:
The polygraph can most certainly determine if a person is nervous or not, because the nervous system reacts under testing situations, as well as other body reactions. This is not sufficient enought to deternmine wether someone is lying or not, is guilty or not. Someone can be nervous, and the polygraph can identify it, but this does not neccesarily mean a person can be found guilty.
Answer:
On election day, volunteers can help candidates perform all of the following tasks EXCEPT: stuffing envelopes for mailings.
Btw stream Dynamite
Answer:
only 5.53% ppl live in South America
Answer:
The tip would be $6.36
Explanation:
If the bill was $42.40, and you wanted to leave 15% tip

0.15 is the same as 15% and you multiple it by the amount to get your tip
I believe the answer is: Power
In the past, this power is mostly derived from nobility line, but In our current society, Power usually derived primarily from economic power.
For example, someone in company's Upper management position tend to always required to maintain their persona in order to keep a certain amount of respect/positive perception from both the workers and the public.