Based on the information given about the wedge, the option that will increase the mechanical advantage of incisors is D. an increase in the length of the teeth and no change in the thickness at the widest part of the teeth.
A wedge simply means a triangular shaped tool that's used as a simple machine. It is used for the separation of objects.
It should be noted that Incisors (front teeth) act as wedges in the human body and there can be an increase the mechanical advantage of incisors when there's an increase in the length of the teeth and no change in the thickness at the widest part of the teeth.
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The number of btus that are needed to cool lucia’s apartment is 20,400 btus.
<h3>BTUs needed</h3>
First step
Left side=12×10×20
Left side=2400 cubic feet
Middle =16×10×(20-9)
Middle =16×10×11
Middle =1,760 cubic feet
Right side=20×10×20
Right side= 4000 cubic feet
Second step
BTUs:
BTUs=(2400+1760+4000)×2.5
BTUs=8160×2.5
BTUs=20,400 Btus
Therefore the number of btus that are needed to cool lucia’s apartment is 20,400 btus.
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Answer:
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