# A brilliant year

Consider a system in which $$73$$ balls are attached to a point each suspended by similar strings and each string of length $$l = 17 m$$ separated from its adjacent string by an angle $$\theta = 1 \text{radian}$$. Each ball is charged with $$q = 2 C$$. Find the mass of the ball(each has the same mass) such that the system remains in equilibrium.

Give your answer as the integer nearest to $$\text{a}$$ such that $$\text{a} = \text{m}*(1.57*{10}^{-7})$$.

Note: You can use computer aid for calculations at the end.

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