Answer:
(a) The convex mirror image, is always upright at all positions, while images formed by concave mirrors are always inverted when the object distance from the mirror is more than the mirrors focal length.
(b) An upright image is not seen for object at a distance from a concave mirror further than the focal length of the mirror, which is the spoon in the question
Therefore, the location of her eyes of approximately, 30 cm,  from the mirror is more than the mirror's focal length
Explanation:
 
        
             
        
        
        
Answer:
The capacite is C=5.32 uF using the equations of voltage and energy in capacitance  
Explanation:
The energy holds is 5 J and the resistor dissipates 2J so the energy total is 3J
Using:

Voltage in this case is the energy dissipated so



Using the equation to find capacitance 

 F
 F
C= 5.32 uF because u is the symbol for micro that is equal to 
 
        
             
        
        
        
Answer:
a) their potential energy increases.
Explanation:
Ohm's Law is
R= V/I
Where R= Resistance
V= potential difference or potential energy
I= current or conduction electron flow rate
Clearly R and V are directly proportional i-e Potential energy increases with resistance.
 
        
             
        
        
        
<span>The force would double.</span>