In the popular game "Angry Birds" (refer Figure), for the red bird to hit the green bird with their range 55.0 m, what should be
the launch angle (with respect to the horizontal) of the slingshot if the time of flight is 2.50 s? 
1 answer:
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Answer:
C).
Explanation:
As we know that capacitance of a given capacitor is
now we know that energy stored in the capacitor plates
here if all the dimensions of the capacitor plate is doubled
then in that case
here area becomes 4 times on doubling the radius and the distance between the plates also doubles
So new capacitance is now
so capacitance is doubled
now the final energy stored between the plates of capacitor is given as
so the final energy is
Answer:a)1.11×10^-21Nm
b) 1.16×10^-3m
Explanation:see attachment
