Answer:
your answer will be 320kg that would be the pressure at the bottom surface of the block
 
        
             
        
        
        
Answer: 0.790 g/cm3
Explanation:
The density of acetone is 790 Kg/m3.
To convert from Kg to g we multiply by 1000 (1 Kg = 1000 g)
To convert from m3 to cm3 we multiply by 10∧6
So, The density of acetone in (g/cm3) = (790 x 1000) / (10∧6) = 0.79 g/cm3
 
        
             
        
        
        
Answer:
light doesn't need a medium through which to travel because the speed of light is experimentally constant
 
        
             
        
        
        
Answer:


Explanation:
Height Of the watermelon when it is dropped is given as

time of fall under gravity

now if water melon start from rest then we have

acceleration due to gravity for watermelon

now we need to find the final speed of watermelon

so we will have


 
        
             
        
        
        
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