<span>To answer the question above, if the day sky is clear it collects radiation. If air is dry snow sublimates faster. If both cases overlap it disappears faster where ever coldest. Thank you for posting your question here. I hope my answer helps. </span>
        
             
        
        
        
Answer:
The specific gravity of the unkown liquid is 15.
Explanation:
Gauge pressure, at the bottom of the tank in this case, can be calculated from

where  and
 and  are the height of the column of oil and the unkown liquid, respectively. Writing for
 are the height of the column of oil and the unkown liquid, respectively. Writing for  , we have
, we have

Relative to water, the unknow liquid specific weight is 15 times bigger, therefore this is its specific gravity as well.
 
        
             
        
        
        
You may know linear momentum is given by
P= mass.velocity.
Initially car is moving with some velocity so you know initial momentum of the car. Finally it comes to rest i.e final momentum of the car is 0. According to Newton's second law : Force = change in momentum /time. Applying this you'll get answer as 642840N. Hope it helped you. Revert back to me if you have any questions. Please check out the calculation it might be wrong!
        
                    
             
        
        
        
D FOUR years old hope this helps
mark brainliest please
 
        
                    
             
        
        
        
Rain fall which is called run off