Answer:
Explanation:
Since both vectors are pointing on the same direction (Northeast), the sum of them will point in that same direction, and its magnitud will be the sum of the magnitudes of each vector (40m/s2+10m/s2). This problem is just a problem in one dimension. The sum of the vectors is then 50m/s2 Northeast.
 
        
             
        
        
        
Answer:
q = -1.61x10⁻¹⁷ C
Explanation:
The charge of the particle can be found using the definition of the work done by electric force:  
 (1)
         (1)
<u>Where</u>:
q: is the charge
ΔV: is the difference in electric potential 
The work is also equal to:
 (2)
    (2)
<u>Where</u>:
 and
 and  are the electric potential energy of the points A and B, respectively.
 are the electric potential energy of the points A and B, respectively.
Now, by conservation of energy we have:
 (3)
      (3)
<u>Where</u>:   
 and
 and  are the kinetic energy of the points A and B, respectively.
 are the kinetic energy of the points A and B, respectively. 
Rearranging equation (3):    
 
      


Solving the above equation for q:
 
                                              
Therefore, the charge of the particle is -1.61x10⁻¹⁷ C.
I hope it helps you!
 
        
             
        
        
        
Answer:
D wind
Explanation:
Heavy winds may cause much  damage to the Earth along with rain and extreme temperature changes. 
 
        
             
        
        
        
Answer:
Opposite
Explanation:
According to Newton's third law of motion, it states that for every action, there is an equal and opposite reaction. This implies that when you exert a force of 400 N on an object, it will react by giving an equal -400 N to counter the oncoming force. Notice that the equal force is negative to mean it's opposite of the action.
 
        
             
        
        
        
We connect a 3 

 resistor in series to a power source. With the series connection one end of the resistor is connected to the positive terminal of the power source while the other the other end of the resistor is connected to the negative terminal of the power source. Hence the current through the resistor is given bythe Ohm's law

 and the voltage drop on the resistor is given equal to the power source voltage. 
