<span>An alpine glacier can change the topography of a mountainous area through Glacial Erosion and Glacial Deposition. Glaciers are agents of erosion, it can pick up and carry large rocks and sediments. In the process, a deep cavity or hole can form when the glacier plucks a big rock from where it passed. Glaciers have shaped many Mountain Ranges and have created distinct landforms by its erosion process.  In Glacial Deposition, as glaciers melt, it deposits all that it carried and a landform is developed.</span>
        
             
        
        
        
Answer:
(a) 152.85 Nm
(b) 1528.5 Nm
Explanation:
According to the formula of power
P = τ ω
ω = 2 π f
(a) f = 2500 rpm = 2500 / 60 = 41.67 rps
So, 40 x 1000 = τ x 2 x 3.14 x 41.67
τ = 152.85 Nm
(b) f = 250 rpm = 250 / 60 = 4.167 rps
So, 40 x 1000 = τ x 2 x 3.14 x 4.167
τ = 1528.5 Nm
 
        
             
        
        
        
Answer:
Explanation:
Given
Weight of Person 
Cave is  deep
 deep
Breaking stress 
Net Force on Person 




The shortest time such that the person can be taken out of cave

where 
h=distance moved
t=time
a=acceleration



 
                     
 
        
             
        
        
        
Force moves the object but if the same anyone force is applied to both sides then it doesn’t move
        
             
        
        
        
The actual answer is 7/100