The ratio of output force to the input force is generally the mechanical advantage of the machine.
        
             
        
        
        
Answer: In order to help improve your fitness levels you can swim, jog/run, body weight exercises, and a balanced diet. Explain why the greatest benefits to cardiorespiratory fitness come from sustained physical activities like running, walking and cycling.
Explanation:
 
        
                    
             
        
        
        
Answer:
 1.08
Explanation:
This is the case of interference in thin films in which interference bands are formed due to constructive interference of two reflected light waves , one from upper layer and the other from lower layer . If t be the thickness and μ be the refractive index then 
path difference created will be 2μ t. 
For light coming from rarer to denser medium , a phase change of π occurs additionally after reflection from denser medium, here, two times, once from upper layer and then from the lower layer ,  so for constructive interference 
path diff = nλ , for minimum t , n =1
path diff = λ
2μ t. =  λ
μ = λ / 2t
= 626 / 2 x 290
= 1.08 
 
        
             
        
        
        
Answer:
Explanation:
Increases. The force of gravity is distance dependent. Therefore, a smaller 'r' value will result in a larger force. Net force is proportional to the acceleration, so the planet will increase its speed.