Answer:
Change in Potential energy, pe = Final potential energy - Initial potential energy
Explanation:
∆p.e = Final p.e - Initial p.e
From the equation ∆p.e = (mgh) final - (mgh) initial
Answer:
C. her moment of inertia increases and her angular speed decreases
D. her moment of inertia increases and her angular speed decreases
Explanation:
The moment of inertia of a body is the sum of the products of an increment of mass and the square of its distance from the center of rotation. When a spinning person extends her arms, part of her mass increases its distance from the center of rotation, so increases the moment of inertia.
The kinetic energy of a spinning body is jointly proportional to the moment of inertia and the square of the angular speed. Hence an increase in moment of inertia will result in a decrease in angular speed unless there is a change in the rotational kinetic energy.
This effect is used by figure skaters to increase their spin rate by drawing their arms and legs closer to the axis of rotation. Similarly, they can slow the spin by extending arms and legs.
When the person extends her arms, her moment of inertia increases and her angular speed decreases.
_____
<em>Note to those looking for a letter answer</em>
Both choices C and D have identical (correct) wording the way the problem is presented here. You will need to check carefully the wording in any problem you may think is similar.
She presents symptoms of <u>disorganized schizophrenia</u> since her behavior is chaotic and is not organized around themes that are maintained over time.
<h2>What is disorganized schizophrenia?</h2>
Disorganized schizophrenia is the disease expressed through hallucinations and delusions, among the negative symptoms we find cognitive, behavioral and emotional deficits of different types.
<h3>Symptoms of disorganized schizophrenia</h3>
- The person shows disorganization in his emotional states, in what he says and / or in his way of moving.
- The person presents language disorganization that affects thinking and cognitive processes.
Therefore, we can conclude that the presence of inappropriate emotional expressions, disorganized language, and motivational deficits are symptoms of disorganized schizophrenia.
Learn more about schizophrenia here: brainly.com/question/15401779
