Answer:
(D. Gestalt psychology) , is the school of psychology that believes perception is more than the sum of its parts, it involves a whole pattern
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This type of school of psychology studied how all components of sensations are assembled into one's perception
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hope this helps :)
The three physical forms are:
Solid, liquid, or gas.
Diffuse reflection have a great day
Answer:
19.95 J
Explanation:
The center of mass of the ladder is initially at a height of:
![h_1=\frac{L}{2}sin\theta](https://tex.z-dn.net/?f=h_1%3D%5Cfrac%7BL%7D%7B2%7Dsin%5Ctheta)
The center of mass of the ladder ends at a height of:
=L/2
So, the work done is equal to the change in potential energy which is:
W = PE = ![mg(h_2-h_1)](https://tex.z-dn.net/?f=mg%28h_2-h_1%29)
now ![h_2-h_1= 1-sin\theta](https://tex.z-dn.net/?f=h_2-h_1%3D%201-sin%5Ctheta)
therefore
W = [mgL/2]×[1 - sin(theta)]
W = [(7.30)(9.81)(2.50)/2]×[1-sin(51°)]
solving this we get
W = 19.95 J