Using the given equation you get:
E = 1.99x10^-25 / 9.0x10^-6
Divide 1.99 by 9.0: 1.99/9.0 = 0.22
For the scientific notation, when dividing subtract the two exponents:
25 -6 = 19
So you now have 0.22 x 10^-19
Now you need to change the 0.22 to be in scientific notation form:
2.2 x 10^-20
The answer is B.
 
        
             
        
        
        
Answer:
answer is 1000 N
formula used-
<em><u>F= m x (v-u/t)</u></em>
<em><u>mark</u></em><em><u> </u></em><em><u>th</u></em><em><u>is</u></em><em><u> as</u></em><em><u> brainliest</u></em><em><u>!</u></em>
 
        
             
        
        
        
- Total displacement=825m
- Total Time=118s
Average Velocity=Total Displacement/Total Time


 
        
             
        
        
        
Velocity is the vector, 
     made up of the scalar speed + direction of speed
b).  Displacement is the vector, 
           made up of the scalar distance + direction of distance