Computer simulation is useful because it helps in the prediction of what will likely happen in the future using data from past events.
<h3>What is computer simulation?</h3>
- This is the use of computer models to represents a hypothetical scenarios that are likely to be obtained in the real world.
Computer simulations are useful in studying phenomena in the universe because they help us to achieve the followings;
- It helps in the prediction of what will likely happen in the future using data from past events.
- It saves cost and time of carrying out actual experiments.
- It can help prevent a disaster that may occur in the future.
Learn more about computer simulations here: brainly.com/question/22214039
 
        
             
        
        
        
<span>Indeed, this is one of the odd results in physics. A system of two polarizing filters arranged as shown below trasmits no light.</span>
        
                    
             
        
        
        
Answer:
Explanation:
We shall solve this problem on the basis of pinciple that water is incompressible so volume of flow will be equal at every point . 
rate of volume flow of one stream 
= cross sectional area x velocity 
= 8.4 x 3.5 x 2.2 = 64.68 m³ /s 
rate of volume flow of other stream 
= 6.6 x 3.6 x 2.7 
= 64.15 m³ /s 
rate of volume flow of rive , if d be its depth 
= 11.2 x d x 2.8 
= 31.36 d 
volume flow of river = Total of volume flow rate of two streams 
31.36 d  = 64.15 + 64.68 
31.36 d  = 128.83
d = 4.10 m /s .