An isolated system , it does not allow any matter or energy to be exchanged
        
                    
             
        
        
        
The force needed to give a car of mass 800 kg an acceleration of 2.0 ms-² is 1600N. 
<h3>How to calculate force?</h3>
The force needed to push an object can be calculated by multiplying the mass of the object by its acceleration as follows:
Force = mass × acceleration
According to this question, a car of mass 800 kg has an acceleration of 2.0 ms−². The force is calculated as follows:
Force = 800kg × 2m/s²
Force = 1600N
Therefore, the force needed to give a car of mass 800 kg an acceleration of 2.0 ms-² is 1600N.
Learn more about force at: brainly.com/question/13191643
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I think you would be using a topographic Map, So the answer should be A
        
             
        
        
        
A
method of procedure that has characterized natural science since the
17th century, consisting in systematic observation, measurement, and
experiment, and the formulation, testing, and modification of
hypotheses
        
             
        
        
        
Not entirely sure if you're saying Homologous , but assuming you do , the homologous chromosomes seperate in the anaphase stage of Mitsosis of the Cell cycle