If Earth was twice as far from the sun, the force of gravity attracting the Earth to the sun would be only one-quarter as strong. The correct answer will be C. 
        
                    
             
        
        
        
Number 5 is A
number 6 is D
        
             
        
        
        
Answer:
Explanation:
position of centre of mass of door from surface of water
= 10 + 1.1 / 2 
= 10.55 m 
Pressure on centre of mass
atmospheric pressure + pressure due to water column
10 ⁵ + hdg 
= 10⁵ + 10.55 x 1000 x 9.8
= 2.0339 x 10⁵ Pa 
the net force acting on the door (normal to its surface)
= pressure at the centre x area of the door 
= .9 x 1.1 x 2.0339 x 10⁵
= 2.01356 x 10⁵ N 
pressure centre will be at 10.55 m below the surface. 
When the car is filled with air or  it is filled with water , in both the cases pressure centre will lie at the centre of the car . 
 
        
             
        
        
        
Answer:
I think it's Experimental
Explanation:
it has atoms on it.