They are energy inefficient
Explanation:
The main reason why we must change away from using incandescent lighting bulbs is because of their energy inefficiency. 
- Much of the power consumed is used in producing heat in an incandescent bulb. 
- Therefore, they are energy inefficient. 
- Energy saving bulbs produces less heat and they are more durable. 
- Most energy saving bulbs are typically more expensive. 
- Most incandescent bulbs are also not environmentally friendly. 
Learn more: 
Electric bulb brainly.com/question/10421964
#learnwithBrainly
 
        
             
        
        
        
Answer:
 v =  6.45 10⁻³ m / s
Explanation:
Electric force is
                F = q E
Where q is the charge and E is the electric field
Let's use Newton's second law to find acceleration
                 F- W = m a
                a = F / m - g
                a = q / m E  g
Let's calculate
                a = -1.6 10⁻¹⁹ / 9.1 10⁻³¹ (-1.30 10⁻¹⁰) - 9.8
               a = 0.228 10² -9.8
               a=  13.0 m / s²
Now we can use kinematics, knowing that the resting parts electrons
               v² = v₀² + 2 a y
               v =√ (0 + 2 13.0 1.6 10⁻⁶)
             v =  6.45 10⁻³ m / s
 
        
             
        
        
        
Grass dear wolf is the right awnser
        
             
        
        
        
Answer:
the volume of liquid decreased due to evaporation from the exposed free surface of water so molecules got evaporated .
evaporation occurs at room temperature.
 
        
             
        
        
        
Answer:
Answer is 
A. I = 6.3×10^8 A
B. Yes
C. No
Refer below.
Explanation:
Refer to the picture for brief explanation.