Fulcrum need to be positioned balanced with weight on both the sides following law of lever.
What is the physical law of the lever?
- It is the foundation for issues with weight and balance. According to this rule, a lever is balanced when the weight multiplied by the arm on one side of the fulcrum, which serves as the pivot point for the device, equals the weight multiplied by the arm on the opposing side. 
- The lever is balanced, in other words, when the sum of the moments about the fulcrum is zero. 
- The situation in which the positive moments (those attempting to turn the lever clockwise) equal the negative moments is known as this (those that try to rotate it counterclockwise). 
- Moving the weights closer to or away from the fulcrum, as well as raising or lowering the weights, can alter the balance point, or CG, of the lever.
Learn more about the Fulcrum with the help of the given link:
brainly.com/question/16422662
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There are several actions that can be used to increase the action force of a canoe that is moving through water. One can increase the rate of striking or strike harder than before with a bigger paddle. Using a lighter canoe can also be helpful for increasing the speed. I hope the answer comes to your help.
        
             
        
        
        
The basic definition of pressure is force/area and the scientific community defined that as the Pascal (Pa).
        
                    
             
        
        
        
Answer:
dV/dt  = 9 cubic inches per second
Explanation:
Let the height of the cylinder is h 
Diameter of cylinder = height of the cylinder = h 
Radius of cylinder, r = h/2 
dh/dt = 3 inches /s 
Volume of cylinder is given by 

put r = h/2 so, 

Differentiate both sides with respect to t. 

Substitute the values, h = 2 inches, dh/dt = 3 inches / s

dV/dt  = 9 cubic inches per second
Thus, the volume of cylinder increases by the rate of 9 cubic inches per second.
 
        
             
        
        
        
Answer:
hydrogen chloride...........