Hard to see please add a better image. Actually just type out the question.
        
             
        
        
        
Well, it is safe to turn a computer on without a RAM, but you can't really do it. RAM is one of the essential components in computers without which you can't really use a computer. You can turn it on, however, nothing will appear on your screen and the system won't boot. So, technically, it is safe, but it won't do anything to your computer as it cannot run without RAM.
        
                    
             
        
        
        
Roads, trading, Government, water systems,
        
             
        
        
        
They allow users to store files.
They allow users to share files.
They help users organize assignments.
They allow users to clip information from web pages.
 
        
                    
             
        
        
        
The sheave wheel is a pulley wheel that sits above the mine shaft. The hoist cable passes over the sheave wheel and then down the shaft of the mine.
(copied from google)