Answer:
75k
Explanation:
You can see solution in the picture
 
        
             
        
        
        
Answer:
it's false coz
Speed is a scalar quantity. 
 
        
                    
             
        
        
        
Answer:
The speed of the large cart after collision is 0.301 m/s.
Explanation:
Given that,
Mass of the cart, 
Initial speed of the cart, 
Mass of the larger cart, 
Initial speed of the larger cart, 
After the collision,
Final speed of the smaller cart,  (as its recolis)
 (as its recolis)
To find,
The speed of the large cart after collision.
Solution,
Let  is the speed of the large cart after collision. It can be calculated using conservation of momentum as :
 is the speed of the large cart after collision. It can be calculated using conservation of momentum as :





So, the speed of the large cart after collision is 0.301 m/s.
 
        
             
        
        
        
The complete ionization of KBr into its constituents
is:<span>
<span>KBr (s)  --->
 K+ (aq)  +  Br- (aq)</span></span>
<span>
During electrolysis, oxidation takes place at the anode electrode. This means
that an ion is stripped off its electron hence becoming more positive:
<span>2 Br- (aq)  ---> 
Br2 (g) + 2e- </span></span>
We can see that Bromine gas Br2 is evolved at the anode. 
<span>
<span>Meanwhile at the cathode, the reduction reaction occurs.
Which means that the electron from the anode electrode is used to make an ion
more negative:
<span>2K+ (aq)  +  2e-  --->  2K (s) </span></span>
Hence, through reduction, solid potassium is deposited on the
plate.</span>
 
 
Half reactions:
<span>Anode: 2 Br- (aq)  ---> 
Br2 (g) + 2e- </span>                        
<span>Cathode: 2K+ (aq)  +  2e- 
--->  2K (s) </span>
 
        
             
        
        
        
Yes it is! It would be SWE vs. DEN