Answer:
I think no.2 the answer
Because socialization and social resources are both for me
 
        
             
        
        
        
Answer:
 V_{a} - V_{b} = 89.3
Explanation:
The electric potential is defined by
           = - ∫ E .ds
 = - ∫ E .ds
In this case the electric field is in the direction and the points (ds) are also in the direction and therefore the angle is zero and the scalar product is reduced to the algebraic product.
          V_{b} - V_{a} = - ∫ E ds
We substitute
          V_{b} - V_{a} = - ∫ (α + β/ y²) dy
We integrate
           V_{b} - V_{a} = - α y + β / y
We evaluate between the lower limit A  2 cm = 0.02 m and the upper limit B 3 cm = 0.03 m
            V_{b} - V_{a} = - α (0.03 - 0.02) + β (1 / 0.03 - 1 / 0.02)
             V_{b} - V_{a} = - 600 0.01 + 5 (-16.67) = -6 - 83.33
             V_{b} - V_{a} = - 89.3 V
As they ask us the reverse case
              V_{b} - V_{a} = - V_{b} - V_{a}
              V_{a} - V_{b} = 89.3
 
        
             
        
        
        
Answer:
a) 
b) 
c) 
d)   or 18.3 cm
 or 18.3 cm
Explanation:
For this case we have the following system with the forces on the figure attached. 
We know that the spring compresses a total distance of x=0.10 m
Part a
The gravitational force is defined as mg so on this case the work donde by the gravity is:

Part b
For this case first we can convert the spring constant to N/m like this:

And the work donde by the spring on this case is given by:

Part c
We can assume that the initial velocity for the block is Vi and is at rest from the end of the movement. If we use balance of energy we got:

And if we solve for the initial velocity we got:

Part d
Let d1 represent the new maximum distance, in order to find it we know that :

And replacing we got:

And we can put the terms like this:

If we multiply all the equation by 2 we got:

Now we can replace the values and we got:


And solving the quadratic equation we got that the solution for  or 18.3 cm because the negative solution not make sense.
 or 18.3 cm because the negative solution not make sense.
 
        
             
        
        
        
Answer:
Why do insects fly so high?
Because the angle of attack is so high, a lot of momentum is transferred downward into the flow. These two features create a large amount of lift force as well as some additional drag. The important feature, however, is the lift.
Why an Aeroplane flying has kinetic  
A flying aeroplane has potential energy has it flies above the ground level. And since the aeroplane is flying motion is associated with it and thus possesses kinetic energy. Hence a flying aeroplane has both potential and kinetic energ
Explanation: