Answer:
10.2 m
Explanation:
The position of the dark fringes (destructive interference) formed on a distant screen in the interference pattern produced by diffraction from a single slit are given by the formula:

where
y is the position of the m-th minimum
m is the order of the minimum
D is the distance of the screen from the slit
d is the width of the slit
 is the wavelength of the light used
 is the wavelength of the light used
In this problem we have:
 is the wavelength of the light
 is the wavelength of the light
 is the width of the slit
 is the width of the slit
m = 13 is the order of the minimum
 is the distance of the 13th dark fringe from the central maximum
 is the distance of the 13th dark fringe from the central maximum
Solving for D, we find the distance of the screen from the slit:

 
        
             
        
        
        
Answer:
ieces A and B must also have the same type of charges
Explanation:
In electrostatics, charges of the same sign repel and charges of different signs attract.
If we apply this to our case, we have that part A and C repel each other, therefore they have the same type of charge.
Also part A and C repel each other, therefore they have the same type of charge.
If we use the transitive property of mathematics, pieces A and B must also have the same type of charges
 
        
             
        
        
        
Answer:

Explanation:
Given data:
mass of sphere is 10 g
Angle between string and vertical axis is 
thickness of string  300 mm = 0.3 m

r =0.3 sin 13 = 0.067 m



     


q = ne

