Use the equation 

plug in the variables for the equation. Use 0 for Vf because at the highest point the velocity would be zero. Use -9.8 for acceleration because that is the speed at which gravity pulls down.

your answer would be 2.06122 seconds.
 
        
        
        
Answer:
The answer is 45 degree angle
 
        
             
        
        
        
Answer:
D) Vertically.
Explanation:
A free body diagram is used to represent all the forces acting in a body. forces like, the force of gravity as a result of the gravitational interaction between the object and the Earth (W), the frictional force opposite to the movement of the object ( ), the normal force due to the plane and the object (N) and the force applied to start the movement in a particular direction (F).
), the normal force due to the plane and the object (N) and the force applied to start the movement in a particular direction (F). 
As is show in the free body diagram of the system, W, which is the weight of the body as a consequence of the gravitational force, is at an angle  below the inclined plane. that angle between the plane and the x axis is the same that the one of the inclined plane with respect to the horizontal, Since its sides are perpendicular.
 below the inclined plane. that angle between the plane and the x axis is the same that the one of the inclined plane with respect to the horizontal, Since its sides are perpendicular.   
Notice how W goes always in the direction to the center of mass of Earth in a vertical path (For comparison see figure (a) and (b)).   
 
        
             
        
        
        
Answer:
This means C.the car uses 20% of the energy store in the gasoline for motion.
Explanation:
I hope this helps.
 
        
                    
             
        
        
        
  Charge will decreases.
A parallel plate capacitor when it is fully charged to voltage V is given as:
                     C = Q/V 
The capacitance of parallel plate capacitor with two plates of Area A separated by distance d and no dielectric material between plates is 
                     C = ε₀ A /d
 since from above equation it shows C is proportional to Q and also C is inversely proportional to distance d.
So, ATQ when d increases C will decrease which in result decreases charge on the capacitor. 
Thus,  Charge will decrease.
Learn more about capacitance here:
      brainly.com/question/17115454
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