Answer:
A. The athlete isn’t doing any work because he doesn’t move the weight.
Explanation:
We must remember the definition of work, which says that work is equal to the product of mass by the distance displaced. In this case, the athlete only does work when he lifts the weight from the ground to the point where he holds the weight suspended.
So when he's holding the weight, he doesn't do any work.
 
        
             
        
        
        
Answer: 100 suns
Explanation:
We can solve this with the following relation:

Where:
 is the diameter of a dime
 is the diameter of a dime
 is the diameter of the Sun
 is the diameter of the Sun
 is the distance between the Sun and the pinhole
 is the distance between the Sun and the pinhole
 is the amount of dimes that fit in a distance between the sunball and the pinhole
 is the amount of dimes that fit in a distance between the sunball and the pinhole
Finding  :
:


 This is roughly the diameter of the Sun
 This is roughly the diameter of the Sun
Now, the distance between the Earth and the Sun is one astronomical unit (1 AU), which is equal to:

So, we have to divide this distance between  in order to find how many suns could it fit in this distance:
 in order to find how many suns could it fit in this distance:

 
        
             
        
        
        
Answer:
Current is in phase with voltage in a resistive circuit. Note that the wave form for power is always positive, never negative for this resistive circuit. This means that power is always being dissipated by the resistive load, and never returned to the source as it is with reactive loads.Explanation:
 
        
             
        
        
        
Because if you increase the surface area of such a fragile object there is more space and in turn more of a chance for the object (in this case the egg) to be damaged.
        
             
        
        
        
The magnet  (south pole of the magnet) has magnetized the right side of the block.
<h3>
Direction of electric field in the magnetic material</h3>
The direction of electric field of the atom of the magnetic material is unpolarized.
From the diagram in the image, the right hand side of the magnetic material is being attracted to south pole of the magnet.
Thus, we can conclude that, the magnet has magnetized the right side of the block.
Learn more about magnetic material here: brainly.com/question/22074447
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