Answer:
<u>0.04kg</u>
Step-by-step explanation:
Kinetic energy Formula: eK=0.5×m×v²
to work out mass
we can rearrange the formula and make it:
~m=eK÷(0.5×v²)
now insert the missing digits into the formula:
m=200÷(0.5×100²)
work it out, and you get your answer
m=0.04kg
Hopefully this helped-have a good day)
 
        
             
        
        
        
Answer:
5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
 12f-5f²+6f+10f²= 10f²-5f²+12f+6f=5f²+18f
 
        
             
        
        
        
Answer:
 .
.
Step-by-step explanation:
We want to find the polynomial that will result from expanding:
 .
.
Recall that we can use the Pascal's triangle to obtain the coefficient as:
1     4    6   4   1 
Also note how the negative sign is going to alternate.
The <em>power of x </em>will decrease from left to right while the <em>power of y</em> increases from left to right
The expansion then becomes:
 .
.