Answer:
Explanation:
v² = u² + 2as
s = (v² - u²) / 2a
s = (29.88² - 6.73²) / (2(5.22))
s = 81.1802203065...
s = 81.18 m
 
        
             
        
        
        
Answer:
Intensity of the next bright fringe will remain same.
Explanation:
The question is based on Young's double slit experiment, since its about bright fringe, the interference here is constructive.
Young's condition for constructive interference is given by:
dsin
where,
d = slits distance from eachother or width of the slits
 = wavelength
 = wavelength
n = interferance order 
Also, we know that in Young's experiment, the fringe intensity is given by:

where,
 = phase difference
 = phase difference
Therefore, in absence of phase difference i.e.,  , the intensity of the next bright fringe will not change and it will remain same.
, the intensity of the next bright fringe will not change and it will remain same.
 
        
             
        
        
        
Answer:
The total resistance is 106 Ω and the current in the circuit is 0.11 A.
Explanation:
Given that,
Voltage of the battery, V = 12 V
Resistors 34 Ω, 42Ω, and 30Ω are connected in series.
The total resistance is given by :}
R = 34 + 42 +30
= 106Ω
Let I is the total current in the circuit. Using ohm's law to find it such that,

Hence, the total resistance is 106 Ω and the current in the circuit is 0.11 A.