Answer:
The mini Cooper will experience the greater force 
Explanation:
Generally, a bulldozer has a greater mass compared to a Mini Cooper hence when both of these vehicles interact in an head on collision the Mini Cooper will experience a greater force because the bulldozer has a greater momentum 
 
        
             
        
        
        
Answer:
b liquids
Explanation:
this is because liquids take the shape of  their container while solids stay solid and do not change shape and solids, liquids and gases all have definite volume.
 
        
             
        
        
        
<span>Cobalt-60 is undergoing a radioactivity decay.
The formula of the decay is n=N(1/2)</span>∧(T/t).
<span>Where N </span>⇒ original mass of cobalt
<span>           n </span>⇒ remaining mass of cobalt after 3 years
          T ⇒ decaying period
           t ⇒ half-life of cobalt.
So, 
0.675 = 1 × 0.5∧(3/t)
log 0.675 = log 0.5∧(3/t)
3/t = log 0.675 ÷log 0.5
 3/t= 0.567
t = 3÷0.567
  = 5.290626524
the half-life of Cobalt-60 is 5.29 years. 
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