The Earth's gravity keeps the Moon orbiting us. It keeps changing the direction of the Moon's velocity. This means gravity makes the Moon accelerate all the time, even though its speed remains constant.
 
        
             
        
        
        
There are different types of contact forces like normal Force, spring force, applied force and tension force.
 
        
                    
             
        
        
        
From the diagram we have that



Therefore the direction is 30° from east of south
 
        
             
        
        
        
 The conversion steps listed above in order from start to finish are already in an arranged form from 1-4.
<h3>What is a biosphere?</h3>
A biosphere can be defined as the part of the earth that supports life. These include :
The flow of energy through the biosphere includes 
- Energy from the sun which is as a result of the nuclear fusion,
- the energy released is absorbed by plant chlorophyll,
- Chemical energy is released during respiration.
- Photosynthesis converts carbon dioxide and water into glucose and oxygen.
Learn more about biosphere here:
brainly.com/question/12467010
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