Answer:
The depth of focus achievable with those lenses is small.
Explanation:
A larger aperture makes it much harder to focus on more than one object. When using a telephoto lens (the ones the question is referring to), the depth of focus is very small. For example, using a telephoto lens to take a photo of a runner might get the runner in focus, but certainly not the track, or the audience behind them. If you look at photos, especially older photos, of Olympians in almost any sport you can see this.
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Answer:
I think when the object transferring the thermal energy reaches the same temp as the object absorbing it 
Explanation:
 
        
             
        
        
        
Answer:
The outer core is a liquid
Explanation:
The outer core is a fluid composed of iron and nickel
 
        
                    
             
        
        
        
The reasoning which is in use when large, angular rocks are interpreted to have originated from the outcrop at the top of the hill is; Fossil succession
<h3>Fossil succession of rocks</h3>
The principle of fossil succession in characterized by the fact that fossil entities succeed one another upward through rock layers in a definite and determinable order.
On this note, any time period can be dated by its fossil content.
Read more on fossil succession;
brainly.com/question/2631497
 
        
             
        
        
        
Answer:a computer , machine forcery,0,push
Explanation: