Answer:
if the resistor is fitted in series with the bulb , then the current flowing will be 0.15 A.....
if the resistor if fitted in parallel with the bulb , 
the current flowing will be 0.6 A
Explanation:
total potential difference = 1.5V
when resistors in series , 
total equivalent resistance is = 5 + 5 = 10 ohm
so current = 1.5 ÷ 10 = 0.15
when resistors in parallel , 
total equivalent resistance is = (5 × 5)÷(5 + 5) =2.5 ohm
so current = 1.5÷2.5 = 0.6 A
 
        
             
        
        
        
. Methylated spirits have ethanol as a base but may include methyl alcohol (methanol) as part of the denaturing process.
        
             
        
        
        
Answer:
Ф = 239.73 rad
Explanation:
α = 12 + 15×t
W = ∫α×dt
    = ∫(12 + 5×t)×dt
    = 12×t + 2.5×t^2
then:
Ф = ∫W×dt
    = ∫(12×t + 2.5×t^2)dt
    = 6×t^2 + 5/6×t^3
therefore the angle at t = 4.88s is:
Ф = 6×(4.88)^2 + 5/6×(4.88)^3
    = 239.73 rad    
 
        
             
        
        
        
Hello!
The best explanation is the new "experimental evidence", which occur with the help of new and improved technology. For this question, I suggest you to answer letter b).
Hugs!
        
                    
             
        
        
        
Answer:
22m/s
Explanation:
To find the velocity we employ the equation of free fall: v²=u²+2gh
where u is initial velocity, g is acceleration due to gravity h is the height, v is the velocity the moment it hits the ground, taking the direction towards gravity as positive. 
Substituting for the values in the question we get:
v²=2×9.8m/s²×25m
v²=490m²/s²
v=22.14m/s which can be approximated to 22m/s