Galileo only saw the system through a scope
        
                    
             
        
        
        
Answer:
A. It makes astronauts weightless.
Explanation:
Gravity does not make astronauts feel weightless. Astronauts are weightless because they are orbiting at the same rate as their shuttle. 
Although the force of gravity weakens as one moves away from the earth surface, it does not mean that this force is absent in orbit 
- Gravitational force has a constant acceleration value near the earth surface which is commonly known to be 9.8m/s². 
 - It is a force of attraction tending to hold and bind bodies together so far they have mass. 
 - This force keeps every thing from escaping space-ward from the earth surface. 
 
 
        
             
        
        
        
Answer:
No..
Explanation:
As the bird releases the drop there is no internal force which will drive it into circular path but it will fall on tangent of the arc at the point of release because it has a tangential velocity same as bird. Path will be parabola in vertical plane.
 As the person is on circular arc constantly moving it will never meet that drop.
 
        
             
        
        
        
Coronoid process of the ulna