Answer:
Explanation:
Capacitance of capacitor 
= ε₀ A / d , ε₀ is permittivity of space , A is area of plate , d is distance between plates.
= 8.85 x 10⁻¹² x 2 x 10⁻³ / (6 x 10⁻³)
= 2.95 x 10⁻¹² F 
Electric field E = V / d , V is potential difference 
V = E x d 
= 100 x 10³ x 6 x 10⁻³
= 600 V 
Charge on the capacitor
= capacitance x potential difference 
= 2.95 x 10⁻¹² x 600
= 17.7 x 10¹⁰ C 
 
        
             
        
        
        
Answer:
94.82 nm
Explanation:
We have given that wavelength 
We have to find the minimum film thickness that produces the least reflection 
minimum thickness is given by 
here n is given n=1.45
so minimum thickness 
so the minimum film thickness will be 94.82 nm 
 
        
             
        
        
        
I believe this is right-
for the first question, it should be fluffy 
and for the second it should be spot 
potential energy is unused
kinetic energy is being used 
 
        
             
        
        
        
Momentum = mass x velocity
Thus Option A is the correct answer 
Momentum (dog)  = 10 kg x (0.447 x 30) m/s
= 134.1 Kg m/s
Momentum ( bullet)  = 0.02 kg x (0.447 x 800) m/s
= 7.152 Kg m/s
Momentum ( truck) = 0, as v = 0
tightrope has both low mass  and low speed, thus its momentum will be low
 
        
             
        
        
        
Answer:
the intercepts of a graph are point at which the graph crosses the axes