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BlackZzzverrR [31]
3 years ago
15

What is the difference between a polysomnography and electroencephalography?

Biology
1 answer:
nordsb [41]3 years ago
3 0
There is a big difference. A polysomnograph is only capable of measuring the electrical activity associated with eye movement, in particular during sleep. An EEG measures the electrical current that are passing in your brain and is not limited to sleep medicine but neurology and diagnostic medicine. You'd use a poly. During sleep studies.
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Just before opening her parachute a skydiver of mass 50 kg reaches terminal velocity.calculate the force of air resistance
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Terminal velocity is described as a velocity attained when an object which falls freely experiences 0 net force owing to gravitational force which is balanced by the resistance of the air. Hence, there is no acceleration thus, the velocity is constant. In order to attain terminal velocity by the skydiver, the weight of the skydiver must be equal to the resistance of the air hence we  have the equation below;

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