Answer:0.0704 kg
Explanation:
Given
initial Absolute pressure =210+101.325=311.325
=210+101.325=311.325



as the volume remains constant therefore 



therefore Gauge pressure is 337.44-101.325=236.117 KPa
Initial mass 

Final mass 

Therefore  =0.91-0.839=0.0704 kg of air needs to be removed to get initial pressure back
=0.91-0.839=0.0704 kg of air needs to be removed to get initial pressure back
 
        
             
        
        
        
Answer:
The material must be durable (quality of the material requirement)
Explanation:
The design criteria set for the materials used for technological design are;
1) The materials should be affordable (less costly)
2) The materials should be last for a long duration (high durability)
3) The material should be readily available (easily sourced)
Therefore, given that the engineers initially had the criteria for the required plastic to be of high quality and to be readily available, and that the poly-carbonate they found is long lasting and not too costly, the criteria met that was set initially was the  quality criteria of durability.
 
        
                    
             
        
        
        
1).  The little projectile is affected by friction all the way through the block.
Friction robs some kinetic energy.
2).  The block is affected by friction as it scrapes along the top of the post.
Friction robs some kinetic energy.
3).  The block is also affected by friction with the air (air resistance) as it
falls to the ground.  Friction robs some kinetic energy.
        
             
        
        
        
Answer: waves transport energy, not water. As a wave crest passes, the water particles move in circular paths. The movement of the floating inner tube is simulacra to the movement of the water particles. Water particles rise as a wave crest approaches.
Explanation: